Trauma Covering Material

Abstract

1. A negative pressure wound dressing comprising: a backing layer, an adhesive skin contact layer, and an absorbent structure disposed between the backing layer and the adhesive skin contact layer, the adhesive skin contact layer configured to removably adhere the dressing to a skin surface, the backing layer including a connecting component configured to connect the dressing to a negative pressure source, the absorbent structure including a wound contact layer disposed to contact the wound when the adhesive skin contact layer is adhered to skin adjacent the wound, the wound contact layer having a first surface and a second surface, the first surface of the wound contact layer may contact the wound in use, the first surface may include warp stitches, and the second surface may include warp stitches and weft stitches.

Description

[Technical Field]

[0001] The present invention relates to wound dressings, and in particular to negative pressure wound dressings. [Background technology]

[0002] BACKGROUND OF THE INVENTION Wound dressings are known and generally suitable for treating a variety of wounds, including chronic and acute wound types such as infected wounds, venous ulcers, diabetic ulcers, burns, and surgical wounds.

[0003] Negative pressure has been used to treat a range of chronic and acute wounds. Negative pressure may facilitate wound healing through several mechanisms, including the removal of excess exudate, reduction of periwound edema, and increased perfusion. When combined with the physical force exerted by negative pressure to bring the wound ends together, this can result in improved wound outcomes.

[0004] Wound dressings typically include an adhesive skin contact layer for removably adhering the dressing to the skin surface. Conventionally, the adhesive skin contact layer includes a plurality of perforations (i.e., through-holes in the adhesive skin contact layer) that allow bodily fluids, such as wound exudate (or fluid), to flow through the layer while preventing tissue ingrowth into other materials included in the wound dressing. The perforations typically have a diameter of no more than 1.2 mm to facilitate adhesion of the skin contact layer to the skin surface and to provide a sufficiently breathable skin contact layer, i.e., allowing the passage of water vapor and gases within the layer. The skin contact layer typically includes a silicone adhesive. Unfortunately, some perforations tend to close or at least decrease in diameter after formation due to the silicone adhesive entering and blocking the perforations. While this can increase the adhesion of the layer to the skin surface, it can adversely affect the breathability of the skin contact layer, causing fluid accumulation at and near the skin or wound site, thereby preventing the creation of an optimal environment for wound healing. Conversely, it is known to increase the size of the perforations in the adhesive skin contact layer to aid breathability. However, this is achieved at the expense of adhesion of the skin contact layer to the skin surface; in such cases, the skin contact layer may only weakly contact the skin surface, such that patient movement while the wound dressing is adhered can cause partial or complete detachment of the wound dressing from the patient, adversely affecting the dressing's ability to transmit negative pressure to the wound site.

[0005] Conventional techniques for forming perforations in adhesive layers include the use of a hot pin process. However, this disadvantageously results in the formation of "slugs" around the perforations. That is, the material that tends to be removed to form the perforations is not completely removed from the body of material, thereby partially blocking the perforations and resulting in an uneven surface of the skin-contacting layer. To overcome this, ultrasound can be used to form the perforations. However, this process disadvantageously results in the formation of doughnut / volcano structures around the perforations.

[0006] Portable systems have been developed that include a means for managing exudate produced by a wound within a wound dressing, typically by collecting it in an absorbent material and allowing it to evaporate through the dressing. Such systems mean that a separate collection canister is not an integral part of the system. The advantage of not requiring a canister is that the device is less bulky and more portable. The disadvantage of such devices is that if the dressing exceeds its fluid handling capacity, exudate can be siphoned out of the absorbent material and enter the pump. The presence of exudate within the pump will eventually cause the pump to fail, requiring repair. The treatment provided by the system may be suboptimal because excess exudate may collect or pool at the wound interface. It is known to provide a barrier layer between the absorbent material and the pump to prevent contamination of the pump by exudate. However, the liquid barrier layer does not improve the exudate absorption capacity of the absorbent material.

[0007] Wound contact layers are known to contain a mixture of gelling and non-gelling fibers. Gelling fibers form a gel when in contact with exudate. However, upon gel formation, many wound contact layers weaken and, in some cases, partially separate from other layers in the absorbent structure. To overcome this, it is known to provide non-gelling fibers as part of the wound contact surface of the wound contact layer. Such an arrangement aims to strike a balance between providing a sufficient amount of gelling fibers and preventing separation of the wound contact layer when wet with exudate.

[0008] However, known wound contact layers do not adequately achieve this balance, and such layers do not adequately prevent the accumulation of exudate on the wound contact surface or adhere adequately to other layers in the wound dressing when the wound contact layer becomes wet with exudate.

[0009] During negative pressure therapy, air and wound exudate are removed from the wound site. The wound exudate must be collected away from the wound site. Some known negative pressure therapy systems include a waste canister connected to the pump unit for collecting and storing the wound exudate. However, the use of a canister can result in the therapy system itself being bulky and expensive to manufacture. Additionally, replacing the canister or the container within the canister in which the wound exudate is collected can be a time-consuming and relatively unsanitary process.

[0010] In an attempt to eliminate the need for a canister and pump system, negative pressure wound dressings have been manufactured that include an absorbent layer to absorb wound exudate. However, such wound dressings often fail to adequately meet two requirements for the absorbent layer of a wound dressing: that the absorbent layer have a high absorbent capacity and remain flexible (i.e., do not become stiff) as it absorbs wound exudate and then dries.

[0011] Known absorbent layers with relatively low absorbency can cause the accumulation of wound exudate at the wound site, which is uncomfortable and unhygienic for the patient and for the medical personnel changing the wound dressing. Furthermore, prolonged contact with excessive wound exudate carries the risk that the wound and / or surrounding skin will become macerated.

[0012] Moreover, when wound exudate is absorbed and then dried, known absorbent layers often become relatively stiff, which disadvantageously provides a tunneling effect for air movement, resulting in "doming" of the absorbent layer fabric, which can cause air to leak from the wound dressing and thereby adversely affect the negative pressure transmitted to the wound site.

[0013] Conventional negative pressure wound dressings often include relatively stiff dressings and connecting members that negatively impact the usability of the system and provide a relatively stiff wound dressing that is detrimental to user comfort. Moreover, their incorporation into the wound dressing requires a separate manufacturing step, thereby increasing manufacturing time and costs.

[0014] The purpose of such elements is to attempt to increase the integrity of the wound dressing, preventing or at least reducing separation of one or more layers contained therein. However, the benefits of such elements often do not outweigh the drawbacks associated with additional manufacturing steps, complex processing, and stiffness of the final wound dressing. Furthermore, stiff dressings and bonding elements are often counterproductive to the absorption or transport of wound exudate from the wound site through the wound dressing. Additionally, existing negative pressure wound dressing systems do not utilize absorbent materials and additional wound dressing elements designed to maximize the management of wound exudate within the dressing.

[0015] It is known to provide a wound dressing comprising a wound contact layer, a transfer layer, and an absorbent layer, with the transfer layer overlying the wound contact layer and the absorbent layer overlying the transfer layer. This arrangement is disclosed in U.S. Pat. No. 10,507,141. However, such an arrangement does not provide significant absorbency. This means that the arrangement suffers from unnecessary accumulation of wound exudate at the wound site. This may improve the hygiene of the wound dressing and the wound site, which may result in improved comfort for the user.

[0016] It is an aim of embodiments of the present invention to at least partially overcome or mitigate the above problems and / or to provide an improved wound dressing. Summary of the Invention

[0017] According to a broad aspect of the present invention, there is provided a wound dressing comprising an adhesive skin contact layer. The adhesive skin contact layer has a thickness of 40 gsm (or g / m 2 The adhesive skin contact layer may have a weight between 1.25 gsm and 250 gsm. The adhesive skin contact layer may be a perforated mesh. The adhesive skin contact layer may include perforations. Each of the perforations may have a diameter between 1.25 mm and 5.00 mm.

[0018] The wound dressing may be a negative pressure wound dressing. The wound dressing may include a backing layer. The wound dressing may include an absorbent structure. The absorbent structure may be disposed between the backing layer and an adhesive skin contact layer. The adhesive skin contact layer may be configured to removably adhere the dressing to a skin surface. The backing layer may include a connecting piece configured to connect the dressing to a negative pressure source.

[0019] According to a first aspect of the present invention, there is provided a negative pressure wound dressing comprising a backing layer, an adhesive skin contact layer, and an absorbent structure disposed between the backing layer and the adhesive skin contact layer, wherein the adhesive skin contact layer is configured to removably adhere the dressing to a skin surface, the backing layer comprises a connecting piece configured to connect the dressing to a negative pressure source, the adhesive skin contact layer has a weight of between 40 gsm and 250 gsm, and further wherein the adhesive skin contact layer is a perforated mesh comprising perforations each having a diameter of between 1.25 mm and 5.00 mm.

[0020] The adhesive skin contact layer contains perforations each having a diameter between 1.25 mm and 5.00 mm. Advantageously, this means that even if the diameter of some of the perforations decreases after their formation, the perforations still have a diameter sufficient to provide breathability to the wound dressing. Thus, the adhesive skin contact layer maintains an optimal environment for wound healing.

[0021] Surprisingly, it has been found that the relatively large perforations compared to the 1.20 mm diameter perforations known in the prior art do not adversely affect adhesion to the skin surface. Advantageously, therefore, the present invention allows the wound dressing to function without losing, or at least significantly reducing, adhesion to the skin surface, thereby reliably transmitting negative pressure to the wound site.

[0022] Furthermore, it has been found that perforations having a diameter between 1.25 mm and 5.00 mm do not "close up," or at least do not substantially close up, after the preparation of the adhesive skin contact layer. In comparison, perforations having a smaller diameter, for example 1.20 mm, tend to close up after formation due to penetration of the silicone adhesive and blocking of the perforations. Thus, the present invention provides an adhesive skin contact layer that ensures sufficient breathability of the wound dressing during use.

[0023] Perforations include through holes in the adhesive skin contact layer that allow the flow of bodily fluids through the layer, such that in use, when the adhesive skin contact layer is placed over and in contact with a wound, it prevents or at least substantially prevents tissue ingrowth into other materials included in the wound dressing.

[0024] Advantageously, the adhesive skin contact layer helps maintain the integrity of the wound dressing while creating an airtight or substantially airtight seal around the absorbent structure to maintain negative pressure at the wound.

[0025] The absorbent structure may be located between the backing layer and the adhesive skin contact layer. Advantageously, this means that wound exudate is absorbed by the absorbent structure before it contacts the backing layer.

[0026] The adhesive skin contact layer may have a weight of about 40 gsm, about 50 gsm, about 60 gsm, about 70 gsm, about 80 gsm, about 90 gsm, about 100 gsm, about 110 gsm, about 120 gsm, about 130 gsm, about 140 gsm, about 150 gsm, about 155 gsm, about 160 gsm, about 165 gsm, about 170 gsm, about 175 gsm, about 180 gsm, about 185 gsm, about 190 gsm, about 195 gsm, about 200 gsm, about 205 gsm, about 210 gsm, about 215 gsm, about 220 gsm, about 225 gsm, about 230 gsm, about 235 gsm, about 240 gsm, about 245 gsm, or about 250 gsm.

[0027] The adhesive skin contact layer may be at least about 40 gsm, at least about 50 gsm, at least about 60 gsm, at least about 70 gsm, at least about 80 gsm, at least about 90 gsm, at least about 100 gsm, at least about 110 gsm, at least about 120 gsm, at least about 130 gsm, at least about 140 gsm, at least about 150 gsm, at least about 155 gsm, at least about 160 gsm, at least about 165 gsm, at least about 170 gsm, at least about 180 gsm, at least about 190 gsm, at least about 200 gsm, at least about 210 gsm, at least about 220 gsm, at least about 230 gsm, at least about 240 gsm, at least about 250 gsm, at least about 260 gsm, at least about 270 gsm, at least about 280 gsm, at least about 290 gsm, at least about 300 gsm, at least about 310 gsm, at least about 320 gsm, at least about 330 gsm, at least about 340 gsm, at least about 350 gsm, at least about 360 gsm, at least about 370 gsm, at least about 380 gsm, at least about 390 gsm, at least about 400 gsm, at least about 410 gsm, at least about 420 gsm, at least about 430 gsm, at least about 440 gsm, at least about 450 gsm, at least about 460 gsm, at least about 470 gsm, at least about Alternatively, the sheet may have a weight of at least about 175 gsm, at least about 180 gsm, at least about 185 gsm, at least about 190 gsm, at least about 195 gsm, at least about 200 gsm, at least about 205 gsm, at least about 210 gsm, at least about 215 gsm, at least about 220 gsm, at least about 225 gsm, at least about 230 gsm, at least about 235 gsm, at least about 240 gsm, at least about 245 gsm, or at least about 250 gsm.

[0028] The adhesive skin contact layer may be about 40 gsm or less, about 50 gsm or less, about 60 gsm or less, about 70 gsm or less, about 80 gsm or less, about 90 gsm or less, about 100 gsm or less, about 110 gsm or less, about 120 gsm or less, about 130 gsm or less, about 140 gsm or less, about 150 gsm or less, about 155 gsm or less, about 160 gsm or less, about 165 gsm or less, about 170 gsm or less, about 175 gsm or less gsm or less, about 180 gsm or less, about 185 gsm or less, about 190 gsm or less, about 195 gsm or less, about 200 gsm or less, about 205 gsm or less, about 210 gsm or less, about 215 gsm or less, about 220 gsm or less, about 225 gsm or less, about 230 gsm or less, about 235 gsm or less, about 240 gsm or less, about 245 gsm or less, or about 250 gsm or less.

[0029] The adhesive skin contact layer may be between about 40 gsm and about 250 gsm, between about 50 gsm and about 250 gsm, between about 60 gsm and about 250 gsm, between about 70 gsm and about 250 gsm, between about 80 gsm and about 250 gsm, between about 90 gsm and about 250 gsm, between about 100 gsm and about 250 gsm, between about 125 gsm and about 245 gsm, between about 135 gsm and about 240 gsm The sheet may have a weight between about 150 gsm and about 235 gsm, between about 160 gsm and about 230 gsm, between about 170 gsm and about 230 gsm, between about 175 gsm and about 225 gsm, between about 180 gsm and about 220 gsm, between about 185 gsm and about 215 gsm, between about 190 gsm and about 210 gsm, between about 195 gsm and about 205 gsm, or about 200 gsm.

[0030] The adhesive skin contact layer may be between about 40 gsm and about 250 gsm, between about 40 gsm and about 240 gsm, between about 40 gsm and about 230 gsm, between about 40 gsm and about 220 gsm, between about 40 gsm and about 210 gsm, between about 40 gsm and about 200 gsm, between about 40 gsm and about 190 gsm, between about 40 gsm and about 180 gsm, between about 40 gsm and about 170 gsm, between about 40 gsm and about 160 gsm, between about 40 gsm and about 180 gsm, between about 40 gsm and about 190 gsm, between about 40 gsm and about 200 gsm, between about 40 gsm and about 210 gsm, between about 40 gsm and about 220 gsm, between about 40 gsm and about 230 gsm, between about 40 gsm and about 240 gsm, between about 40 gsm and about 250 gsm, between about 40 gsm and about 260 gsm, between about 40 gsm and about 270 gsm, between about 40 gsm and about 280 gsm, between about 40 gsm and about 290 gsm, between about 40 gsm and about 300 gsm, between about 40 gsm and about 310 gsm, between about 40 gsm and about 320 gsm, between about 40 gsm and about 330 gsm, between about 40 gsm and about 340 gsm, between about 40 gsm and about 350 gsm, and about 150 gsm, between about 40 gsm and about 140 gsm, between about 40 gsm and about 130 gsm, between about 40 gsm and about 120 gsm, between about 40 gsm and about 110 gsm, between about 40 gsm and about 100 gsm, between about 40 gsm and about 90 gsm, between about 40 gsm and about 80 gsm, between about 40 gsm and about 70 gsm, between about 40 gsm and about 60 gsm, or between about 40 gsm and about 50 gsm.

[0031] The adhesive skin contact layer may be between about 50 gsm and about 250 gsm, between about 50 gsm and about 240 gsm, between about 50 gsm and about 230 gsm, between about 50 gsm and about 220 gsm, between about 50 gsm and about 210 gsm, between about 50 gsm and about 200 gsm, between about 50 gsm and about 190 gsm, between about 50 gsm and about 180 gsm, between about 50 gsm and about 170 gsm, between about 50 gsm and about 160 gsm , between about 50 gsm and about 150 gsm, between about 50 gsm and about 140 gsm, between about 50 gsm and about 130 gsm, between about 50 gsm and about 120 gsm, between about 50 gsm and about 110 gsm, between about 50 gsm and about 100 gsm, between about 50 gsm and about 90 gsm, between about 50 gsm and about 80 gsm, between about 50 gsm and about 70 gsm, or between about 50 gsm and about 60 gsm.

[0032] The adhesive skin contact layer may be between about 60 gsm and about 250 gsm, between about 60 gsm and about 240 gsm, between about 60 gsm and about 230 gsm, between about 60 gsm and about 220 gsm, between about 60 gsm and about 210 gsm, between about 60 gsm and about 200 gsm, between about 60 gsm and about 190 gsm, between about 60 gsm and about 180 gsm, between about 60 gsm and about 170 gsm, between about 60 gsm and about 280 gsm, between about 60 gsm and about 290 gsm, between about 60 gsm and about 300 gsm, between about 60 gsm and about 310 gsm, between about 60 gsm and about 320 gsm, between about 60 gsm and about 330 gsm, between about 60 gsm and about 340 gsm, between about 60 gsm and about 350 gsm, between about 60 gsm and about 360 gsm, between about 60 gsm and about 370 gsm, between about 60 gsm and about 380 gsm, between about 60 gsm and about 390 gsm, between about 60 gsm and about 400 gsm, between about 60 gsm and about 410 gsm, between about 60 gsm and about 420 gsm, between about 60 gsm and about 440 gsm, between about 60 gsm and about 450 gsm, between about 60 gsm and about 460 gsm, between about 60 gsm and about 470 gsm, It may have a weight of between about 160 gsm, between about 60 gsm and about 150 gsm, between about 60 gsm and about 140 gsm, between about 60 gsm and about 130 gsm, between about 60 gsm and about 120 gsm, between about 60 gsm and about 110 gsm, between about 60 gsm and about 100 gsm, between about 60 gsm and about 90 gsm, between about 60 gsm and about 80 gsm, or between about 60 gsm and about 70 gsm.

[0033] The adhesive skin contact layer may be between about 70 gsm and about 250 gsm, between about 70 gsm and about 240 gsm, between about 70 gsm and about 230 gsm, between about 70 gsm and about 220 gsm, between about 70 gsm and about 210 gsm, between about 70 gsm and about 200 gsm, between about 70 gsm and about 190 gsm, between about 70 gsm and about 180 gsm, between about 70 gsm and about 170 gsm, It may have a weight between about 70 gsm and about 160 gsm, between about 70 gsm and about 150 gsm, between about 70 gsm and about 140 gsm, between about 70 gsm and about 130 gsm, between about 70 gsm and about 120 gsm, between about 70 gsm and about 110 gsm, between about 70 gsm and about 100 gsm, between about 70 gsm and about 90 gsm, or between about 70 gsm and about 80 gsm.

[0034] The adhesive skin contact layer may be between about 80 gsm and about 250 gsm, between about 80 gsm and about 240 gsm, between about 80 gsm and about 230 gsm, between about 80 gsm and about 220 gsm, between about 80 gsm and about 210 gsm, between about 80 gsm and about 200 gsm, between about 80 gsm and about 190 gsm, between about 80 gsm and about 180 gsm, between about 80 gsm and about It may have a weight of between about 80 gsm and about 170 gsm, between about 80 gsm and about 160 gsm, between about 80 gsm and about 150 gsm, between about 80 gsm and about 140 gsm, between about 80 gsm and about 130 gsm, between about 80 gsm and about 120 gsm, between about 80 gsm and about 110 gsm, between about 80 gsm and about 100 gsm, or between about 80 gsm and about 90 gsm.

[0035] The adhesive skin contact layer may have a weight of between about 90 gsm and about 250 gsm, between about 90 gsm and about 240 gsm, between about 90 gsm and about 230 gsm, between about 90 gsm and about 220 gsm, between about 90 gsm and about 210 gsm, between about 90 gsm and about 200 gsm, between about 90 gsm and about 190 gsm, between about 90 gsm and about 180 gsm, between about 90 gsm and about 170 gsm, between about 90 gsm and about 160 gsm, between about 90 gsm and about 150 gsm, between about 90 gsm and about 140 gsm, between about 90 gsm and about 130 gsm, between about 90 gsm and about 120 gsm, between about 90 gsm and about 110 gsm, or between about 90 gsm and about 100 gsm.

[0036] The adhesive skin contact layer may have a weight of between about 100 gsm and about 250 gsm, between about 100 gsm and about 240 gsm, between about 100 gsm and about 230 gsm, between about 100 gsm and about 220 gsm, between about 100 gsm and about 210 gsm, between about 100 gsm and about 200 gsm, between about 100 gsm and about 190 gsm, between about 100 gsm and about 180 gsm, between about 100 gsm and about 170 gsm, between about 100 gsm and about 160 gsm, between about 100 gsm and about 150 gsm, between about 100 gsm and about 140 gsm, between about 100 gsm and about 130 gsm, between about 100 gsm and about 120 gsm, or between about 100 gsm and about 110 gsm.

[0037] The adhesive skin contact layer may have a weight of between about 110 gsm and about 250 gsm, between about 110 gsm and about 240 gsm, between about 110 gsm and about 230 gsm, between about 110 gsm and about 220 gsm, between about 110 gsm and about 210 gsm, between about 110 gsm and about 200 gsm, between about 110 gsm and about 190 gsm, between about 110 gsm and about 180 gsm, between about 110 gsm and about 170 gsm, between about 110 gsm and about 160 gsm, between about 110 gsm and about 150 gsm, between about 110 gsm and about 140 gsm, between about 110 gsm and about 130 gsm, or between about 110 gsm and about 120 gsm.

[0038] The adhesive skin contact layer may have a weight of between about 120 gsm and about 250 gsm, between about 120 gsm and about 240 gsm, between about 120 gsm and about 230 gsm, between about 120 gsm and about 220 gsm, between about 120 gsm and about 210 gsm, between about 120 gsm and about 200 gsm, between about 120 gsm and about 190 gsm, between about 120 gsm and about 180 gsm, between about 120 gsm and about 170 gsm, between about 120 gsm and about 160 gsm, between about 120 gsm and about 150 gsm, between about 120 gsm and about 140 gsm, or between about 120 gsm and about 130 gsm.

[0039] The adhesive skin contact layer may have a weight of between about 130 gsm and about 250 gsm, between about 130 gsm and about 240 gsm, between about 130 gsm and about 230 gsm, between about 130 gsm and about 220 gsm, between about 130 gsm and about 210 gsm, between about 130 gsm and about 200 gsm, between about 130 gsm and about 190 gsm, between about 130 gsm and about 180 gsm, between about 130 gsm and about 170 gsm, between about 130 gsm and about 160 gsm, between about 130 gsm and about 150 gsm, or between about 130 gsm and about 140 gsm.

[0040] The adhesive skin contact layer may have a weight of between about 140 gsm and about 250 gsm, between about 140 gsm and about 240 gsm, between about 140 gsm and about 230 gsm, between about 140 gsm and about 220 gsm, between about 140 gsm and about 210 gsm, between about 140 gsm and about 200 gsm, between about 140 gsm and about 190 gsm, between about 140 gsm and about 180 gsm, between about 140 gsm and about 170 gsm, between about 140 gsm and about 160 gsm, or between about 140 gsm and about 150 gsm.

[0041] The adhesive skin contact layer may have a weight of between about 150 gsm and about 250 gsm, between about 150 gsm and about 240 gsm, between about 150 gsm and about 230 gsm, between about 150 gsm and about 220 gsm, between about 150 gsm and about 210 gsm, between about 150 gsm and about 200 gsm, between about 150 gsm and about 190 gsm, between about 150 gsm and about 180 gsm, between about 150 gsm and about 170 gsm, or between about 150 gsm and about 160 gsm.

[0042] The adhesive skin contact layer may have a weight of between about 160 gsm and about 250 gsm, between about 160 gsm and about 240 gsm, between about 160 gsm and about 230 gsm, between about 160 gsm and about 220 gsm, between about 160 gsm and about 210 gsm, between about 160 gsm and about 200 gsm, between about 160 gsm and about 190 gsm, between about 160 gsm and about 180 gsm, or between about 160 gsm and about 170 gsm.

[0043] The adhesive skin contact layer may have a weight of between about 170 gsm and about 250 gsm, between about 170 gsm and about 240 gsm, between about 170 gsm and about 230 gsm, between about 170 gsm and about 220 gsm, between about 170 gsm and about 210 gsm, between about 170 gsm and about 200 gsm, between about 170 gsm and about 190 gsm, or between about 170 gsm and about 180 gsm.

[0044] The adhesive skin contact layer may have a weight of between about 180 gsm and about 250 gsm, between about 180 gsm and about 240 gsm, between about 180 gsm and about 230 gsm, between about 180 gsm and about 220 gsm, between about 180 gsm and about 210 gsm, between about 180 gsm and about 200 gsm, or between about 180 gsm and about 190 gsm.

[0045] The adhesive skin contact layer may have a weight of between about 190 gsm and about 250 gsm, between about 190 gsm and about 240 gsm, between about 190 gsm and about 230 gsm, between about 190 gsm and about 220 gsm, between about 190 gsm and about 210 gsm, or between about 190 gsm and about 200 gsm.

[0046] The adhesive skin contact layer may have a weight of between about 200 gsm and about 250 gsm, between about 200 gsm and about 240 gsm, between about 200 gsm and about 230 gsm, between about 200 gsm and about 220 gsm, or between about 200 gsm and about 210 gsm.

[0047] The adhesive skin contact layer may have a weight of between about 210 gsm and about 250 gsm, between about 210 gsm and about 240 gsm, between about 210 gsm and about 230 gsm, or between about 210 gsm and about 220 gsm.

[0048] The adhesive skin contact layer may have a weight of between about 220 gsm and about 250 gsm, between about 220 gsm and about 240 gsm, or between about 220 gsm and about 230 gsm.

[0049] The adhesive skin contact layer may have a weight between about 230 gsm and about 250 gsm, or between about 230 gsm and about 240 gsm.

[0050] The adhesive skin contact layer may have a weight of between about 240 gsm and about 250 gsm.

[0051] Advantageously, adhesive skin contact layers having a weight between about 100 gsm and about 250 gsm provide a more malleable gel-like structure in the event of an air leak, making the leak easier to seal, than layers having a weight less than 100 gsm, especially less than 40 gsm. Additionally, adhesive skin contact layers having a weight greater than about 250 gsm present processing problems that render the adhesive skin contact layer unusable, for example, the adhesive may "flow out" from cut shapes.

[0052] The adhesive skin contact layer is approximately 1.25 mm, approximately 1.30 mm, approximately 1.35 mm, approximately 1.40 mm, approximately 1.45 mm, approximately 1.50 mm, approximately 1.55 mm, approximately 1.60 mm, approximately 1.65 mm, approximately 1.70 mm, approximately 1.75 mm, approximately 1.80 mm, approximately 1.85 mm, approximately 1 .90mm, approximately 1.95mm, approximately 2.00mm, approximately 2.05mm, approximately 2.10mm, approximately 2.15mm, approximately 2.20mm, approximately 2.25mm, approximately 2.30mm, approximately 2.35mm, approximately 2.40mm, approximately 2.45mm, approximately 2.50mm, approximately 2.55mm, approximately 2.60mm, approximately 2 The stencil may include perforations having a diameter of about 0.65 mm, about 2.70 mm, about 2.75 mm, about 2.80 mm, about 2.85 mm, about 2.90 mm, about 2.95 mm, about 3.00 mm, about 3.10 mm, about 3.20 mm, about 3.30 mm, about 3.40 mm, about 3.50 mm, about 3.60 mm, about 3.70 mm, about 3.80 mm, about 3.90 mm, about 4.00 mm, about 4.10 mm, about 4.20 mm, about 4.30 mm, about 4.40 mm, about 4.50 mm, about 4.60 mm, about 4.70 mm, about 4.80 mm, about 4.90 mm, or about 5.00 mm.

[0053] The adhesive skin contact layer may have a thickness of at least about 1.25 mm, at least about 1.30 mm, at least about 1.35 mm, at least about 1.40 mm, at least about 1.45 mm, at least about 1.50 mm, at least about 1.55 mm, at least about 1.60 mm, at least about 1.65 mm, at least about 1.70 mm, at least about 1.75 mm, at least about 1.80 mm, at least about 1.85 mm, at least about 1.90 mm, at least about 1.95 mm, at least about 2.00 mm, at least about 2.05 mm, at least about 2.10 mm, at least about 2.15 mm, at least about 2.20 mm, or at least about 2.30 mm. at least about 2.25 mm, at least about 2.30 mm, at least about 2.35 mm, at least about 2.40 mm, at least about 2.45 mm, at least about 2.50 mm, at least about 2.55 mm, at least about 2.60 mm, at least about 2.65 mm, at least about 2.70 mm, at least about 2.75 mm, at least about 2.80 mm, at least about 2.85 mm, at least about 2.90 mm, at least about 2.95 mm, at least about 3.00 mm, at least about 3.10 mm, at least about 3.20 mm, at least about 3.30 mm, at least about 3.40 mm, at least about 3.50 mm, at least about The slit may include perforations having a diameter of 3.60 mm, at least about 3.70 mm, at least about 3.80 mm, at least about 3.90 mm, at least about 4.00 mm, at least about 4.10 mm, at least about 4.20 mm, at least about 4.30 mm, at least about 4.40 mm, at least about 4.50 mm, at least about 4.60 mm, at least about 4.70 mm, at least about 4.80 mm, at least about 4.90 mm, or at least about 5.00 mm.

[0054] The adhesive skin contact layer is about 1.25 mm or less, about 1.30 mm or less, about 1.35 mm or less, about 1.40 mm or less, about 1.45 mm or less, about 1.50 mm or less, about 1.55 mm or less, about 1.60 mm or less, about 1.65 mm or less, about 1 .70mm or less, approx. 1.75mm or less, approx. 1.80mm or less, approx. 1.85mm or less, approx. 1.90mm or less, approx. 1.95mm or less, approx. 2.00mm or less, approx. 2.05mm or less, approx. Bottom, about 2.25 mm or less, about 2.30 mm or less, about 2.35 mm or less, about 2.40 mm or less, about 2.45 mm or less, about 2.50 mm or less, about 2.55 mm or less, about 2.60 mm or less, about 2.65 mm or less, about 2.70 mm or less, about 2.7 5mm or less, approximately 2.80mm or less, approximately 2.85mm or less, approximately 2.90mm or less, approximately 2.95mm or less, approximately 3.00mm or less, approximately 3.10mm or less, approximately 3.20mm or less, approximately 3.30mm or less, approximately 3.40mm or less, approximately 3.50mm or less, approximately It may include perforations having a diameter of 3.60 mm or less, about 3.70 mm or less, about 3.80 mm or less, about 3.90 mm or less, about 4.00 mm or less, about 4.10 mm or less, about 4.20 mm or less, about 4.30 mm or less, about 4.40 mm or less, about 4.50 mm or less, about 4.60 mm or less, about 4.70 mm or less, about 4.80 mm or less, about 4.90 mm or less, or about 5.00 mm or less.

[0055] The adhesive skin contact layer may include perforations having a diameter of between about 1.25 mm and about 5.00 mm, between about 1.50 mm and about 4.50 mm, between about 1.75 mm and about 4.00 mm, between about 1.90 mm and about 3.50 mm, between about 2.00 mm and about 3.00 mm, between about 2.05 mm and about 2.80 mm, between about 2.10 mm and about 2.60 mm, between about 2.15 mm and about 2.50 mm, between about 2.18 mm and about 2.40 mm, between about 2.19 mm and about 2.30 mm, or 2.20 mm, respectively.

[0056] The adhesive skin contact layer may include perforations having a diameter of between about 1.75 mm and about 4.00 mm, between about 2.00 mm and about 3.50 mm, between about 2.10 mm and about 3.00 mm, between about 2.15 mm and about 2.50 mm, or 2.20 mm, respectively.

[0057] The adhesive skin contact layer may have a thickness of about 1.25 mm to about 5.00 mm, about 1.25 mm to about 4.95 mm, about 1.25 mm to about 4.90 mm, about 1.25 mm to about 4.80 mm, about 1.25 mm to about 4.70 mm, about 1.25 mm to about 4.60 mm, about 1.25 mm to about 4.50 mm, about 1.25 mm to about 4.40 mm, about 1.25 mm to about 4.3 ... between about 1.25 mm and about 4.20 mm, between about 1.25 mm and about 4.10 mm, between about 1.25 mm and about 4.00 mm, between about 1.25 mm and about 3.90 mm, between about 1.25 mm and about 3.80 mm, between about 1.25 mm and about 3.70 mm, between about 1.25 mm and about 3.60 mm, between about 1.25 mm and about 3.50 mm, between about 1.25 mm and about 3.40 mm, between about 1.25 mm and about 3.30 mm, between about 1.25 mm and about 3.60 mm, Between 0.20mm, between about 1.25mm and about 3.10mm, between about 1.25mm and about 3.00mm, between about 1.25mm and about 2.90mm, between about 1.25mm and about 2.80mm, between about 1.25mm and about 2.70mm, between about 1.25mm and about 2.60mm, between about 1.25mm and about 2.50mm, between about 1.25mm and about 2.40mm, between about 1.25mm and about 2.30mm, between about 1.25mm and about 2.20mm The stencil may include perforations having a diameter between about 1.25 mm and about 2.10 mm, between about 1.25 mm and about 2.00 mm, between about 1.25 mm and about 1.90 mm, between about 1.25 mm and about 1.80 mm, between about 1.25 mm and about 1.70 mm, between about 1.25 mm and about 1.60 mm, between about 1.25 mm and about 1.50 mm, between about 1.25 mm and about 1.40 mm, or between about 1.25 mm and about 1.30 mm.

[0058] The adhesive skin contact layer may have a thickness of between about 1.30 mm and about 5.00 mm, between about 1.30 mm and about 4.95 mm, between about 1.30 mm and about 4.90 mm, between about 1.30 mm and about 4.80 mm, between about 1.30 mm and about 4.70 mm, between about 1.30 mm and about 4.60 mm, between about 1.30 mm and about 4.50 mm, between about 1.30 mm and about 4.40 mm, between about 1.30 mm and about 4.30 mm, and between about 1.30 mm and about 4.50 mm, respectively. Between 30mm and about 4.20mm, between about 1.30mm and about 4.10mm, between about 1.30mm and about 4.00mm, between about 1.30mm and about 3.90mm, between about 1.30mm and about 3.80mm, between about 1.30mm and about 3.70mm, between about 1.30mm and about 3.60mm, between about 1.30mm and about 3.50mm, between about 1.30mm and about 3.40mm, between about 1.30mm and about 3.30mm, between about 0.30 mm and about 3.20 mm, between about 1.30 mm and about 3.10 mm, between about 1.30 mm and about 3.00 mm, between about 1.30 mm and about 2.90 mm, between about 1.30 mm and about 2.80 mm, between about 1.30 mm and about 2.70 mm, between about 1.30 mm and about 2.60 mm, between about 1.30 mm and about 2.50 mm, between about 1.30 mm and about 2.40 mm, between about 1.30 mm and about 2.30 mm, It may include perforations having a diameter between about 1.30 mm and about 2.20 mm, between about 1.30 mm and about 2.10 mm, between about 1.30 mm and about 2.00 mm, between about 1.30 mm and about 1.90 mm, between about 1.30 mm and about 1.80 mm, between about 1.30 mm and about 1.70 mm, between about 1.30 mm and about 1.60 mm, between about 1.30 mm and about 1.50 mm, or between about 1.30 mm and about 1.40 mm.

[0059] The adhesive skin contact layer may have a thickness of about 1.40 mm to about 5.00 mm, about 1.40 mm to about 4.95 mm, about 1.40 mm to about 4.90 mm, about 1.40 mm to about 4.80 mm, about 1.40 mm to about 4.70 mm, about 1.40 mm to about 4.60 mm, about 1.40 mm to about 4.50 mm, about 1.40 mm to about 4.40 mm, or about 1.40 mm to about 4.30 mm, respectively. between about 1.40 mm and about 4.20 mm, between about 1.40 mm and about 4.10 mm, between about 1.40 mm and about 4.00 mm, between about 1.40 mm and about 3.90 mm, between about 1.40 mm and about 3.80 mm, between about 1.40 mm and about 3.70 mm, between about 1.40 mm and about 3.60 mm, between about 1.40 mm and about 3.50 mm, between about 1.40 mm and about 3.40 mm, between about 1.40 mm and about 3.60 mm Between about 1.40mm and about 3.20mm, between about 1.40mm and about 3.10mm, between about 1.40mm and about 3.00mm, between about 1.40mm and about 2.90mm, between about 1.40mm and about 2.80mm, between about 1.40mm and about 2.70mm, between about 1.40mm and about 2.60mm, between about 1.40mm and about 2.50mm, between about 1.40mm and about 2.40mm, between about 1.40mm and about 2.40mm The encapsulation layer may include perforations having a diameter of between about 1.40 mm and about 2.30 mm, between about 1.40 mm and about 2.20 mm, between about 1.40 mm and about 2.10 mm, between about 1.40 mm and about 2.00 mm, between about 1.40 mm and about 1.90 mm, between about 1.40 mm and about 1.80 mm, between about 1.40 mm and about 1.70 mm, between about 1.40 mm and about 1.60 mm, or between about 1.40 mm and about 1.50 mm.

[0060] The adhesive skin contact layer may have a thickness of about 1.50 mm to about 5.00 mm, about 1.50 mm to about 4.95 mm, about 1.50 mm to about 4.90 mm, about 1.50 mm to about 4.80 mm, about 1.50 mm to about 4.70 mm, about 1.50 mm to about 4.60 mm, about 1.50 mm to about 4.50 mm, about 1.50 mm to about 4.40 mm, and about 1.50 mm to about 4.30 mm, respectively. 0 mm, between about 1.50 mm and about 4.20 mm, between about 1.50 mm and about 4.10 mm, between about 1.50 mm and about 4.00 mm, between about 1.50 mm and about 3.90 mm, between about 1.50 mm and about 3.80 mm, between about 1.50 mm and about 3.70 mm, between about 1.50 mm and about 3.60 mm, between about 1.50 mm and about 3.50 mm, between about 1.50 mm and about 3.40 mm, Between 0.50mm and about 3.30mm, between about 1.50mm and about 3.20mm, between about 1.50mm and about 3.10mm, between about 1.50mm and about 3.00mm, between about 1.50mm and about 2.90mm, between about 1.50mm and about 2.80mm, between about 1.50mm and about 2.70mm, between about 1.50mm and about 2.60mm, between about 1.50mm and about 2.50mm, between about 1.50mm and about The catheter may include perforations having a diameter of between about 1.50 mm and about 2.40 mm, between about 1.50 mm and about 2.30 mm, between about 1.50 mm and about 2.20 mm, between about 1.50 mm and about 2.10 mm, between about 1.50 mm and about 2.00 mm, between about 1.50 mm and about 1.90 mm, between about 1.50 mm and about 1.80 mm, between about 1.50 mm and about 1.70 mm, or between about 1.50 mm and about 1.60 mm.

[0061] The adhesive skin contact layer may have a thickness of about 1.60 mm to about 5.00 mm, about 1.60 mm to about 4.95 mm, about 1.60 mm to about 4.90 mm, about 1.60 mm to about 4.80 mm, about 1.60 mm to about 4.70 mm, about 1.60 mm to about 4.60 mm, about 1.60 mm to about 4.50 mm, about 1.60 mm to about 4.4 ...80 mm, about 1.60 mm to about 4.90 mm, about 1.60 mm to about 4.80 mm, about 1.60 mm to about 4.70 mm, about 1.60 mm to about 4.60 mm, about 1.60 mm to about 4.50 mm, about 1.60 mm to about 4.40 mm, about 1.60 mm to about 4.80 mm, about 1.60 mm to about 4.80 mm, about 1.60 mm to about 4.80 mm, about 1.60 mm to about 4.80 mm, about 1.60 mm to about 4.90 mm, about 1.60 mm to about 4.90 mm, about 1.60 mm to about 4.90 mm, about 1.60 mm to about 4.80 mm, about 1.60 mm to about 4.70 mm, about 1.60 mm to about 4.60 mm, about 1.6 between about 1.60 mm and about 4.30 mm, between about 1.60 mm and about 4.20 mm, between about 1.60 mm and about 4.10 mm, between about 1.60 mm and about 4.00 mm, between about 1.60 mm and about 3.90 mm, between about 1.60 mm and about 3.80 mm, between about 1.60 mm and about 3.70 mm, between about 1.60 mm and about 3.60 mm, between about 1.60 mm and about 3.50 mm, between about 1.60 mm and about 3. Between 0.40mm, between about 1.60mm and about 3.30mm, between about 1.60mm and about 3.20mm, between about 1.60mm and about 3.10mm, between about 1.60mm and about 3.00mm, between about 1.60mm and about 2.90mm, between about 1.60mm and about 2.80mm, between about 1.60mm and about 2.70mm, between about 1.60mm and about 2.60mm, between about 1.60mm and about 2.50mm The encapsulation layer may include perforations having a diameter between about 1.60 mm and about 2.40 mm, between about 1.60 mm and about 2.30 mm, between about 1.60 mm and about 2.20 mm, between about 1.60 mm and about 2.10 mm, between about 1.60 mm and about 2.00 mm, between about 1.60 mm and about 1.90 mm, between about 1.60 mm and about 1.80 mm, or between about 1.60 mm and about 1.70 mm.

[0062] The adhesive skin contact layer may have a thickness of between about 1.70 mm and about 5.00 mm, between about 1.70 mm and about 4.95 mm, between about 1.70 mm and about 4.90 mm, between about 1.70 mm and about 4.80 mm, between about 1.70 mm and about 4.70 mm, between about 1.70 mm and about 4.60 mm, between about 1.70 mm and about 4.50 mm, between about 1.70 mm and about 4.40 mm, and between about 1. Between 70mm and about 4.30mm, between about 1.70mm and about 4.20mm, between about 1.70mm and about 4.10mm, between about 1.70mm and about 4.00mm, between about 1.70mm and about 3.90mm, between about 1.70mm and about 3.80mm, between about 1.70mm and about 3.70mm, between about 1.70mm and about 3.60mm, between about 1.70mm and about 3.50mm, between about 0.70 mm and about 3.40 mm, between about 1.70 mm and about 3.30 mm, between about 1.70 mm and about 3.20 mm, between about 1.70 mm and about 3.10 mm, between about 1.70 mm and about 3.00 mm, between about 1.70 mm and about 2.90 mm, between about 1.70 mm and about 2.80 mm, between about 1.70 mm and about 2.70 mm, between about 1.70 mm and about 2.60 mm, It may include perforations having a diameter between about 1.70 mm and about 2.50 mm, between about 1.70 mm and about 2.40 mm, between about 1.70 mm and about 2.30 mm, between about 1.70 mm and about 2.20 mm, between about 1.70 mm and about 2.10 mm, between about 1.70 mm and about 2.00 mm, between about 1.70 mm and about 1.90 mm, or between about 1.70 mm and about 1.80 mm.

[0063] The adhesive skin contact layer may have a thickness of about 1.80 mm to about 5.00 mm, about 1.80 mm to about 4.95 mm, about 1.80 mm to about 4.90 mm, about 1.80 mm to about 4.80 mm, about 1.80 mm to about 4.70 mm, about 1.80 mm to about 4.60 mm, about 1.80 mm to about 4.50 mm, or about 1.80 mm to about 4.40 mm, respectively. between about 1.80 mm and about 4.30 mm, between about 1.80 mm and about 4.20 mm, between about 1.80 mm and about 4.10 mm, between about 1.80 mm and about 4.00 mm, between about 1.80 mm and about 3.90 mm, between about 1.80 mm and about 3.80 mm, between about 1.80 mm and about 3.70 mm, between about 1.80 mm and about 3.60 mm, between about 1.80 mm and about 3. Between about 1.80mm and about 3.40mm, between about 1.80mm and about 3.30mm, between about 1.80mm and about 3.20mm, between about 1.80mm and about 3.10mm, between about 1.80mm and about 3.00mm, between about 1.80mm and about 2.90mm, between about 1.80mm and about 2.80mm, between about 1.80mm and about 2.70mm, between about 1.80mm and about 2.70mm The encapsulation layer may include perforations having a diameter of between about 1.80 mm and about 2.60 mm, between about 1.80 mm and about 2.50 mm, between about 1.80 mm and about 2.40 mm, between about 1.80 mm and about 2.30 mm, between about 1.80 mm and about 2.20 mm, between about 1.80 mm and about 2.10 mm, between about 1.80 mm and about 2.00 mm, or between about 1.80 mm and about 1.90 mm.

[0064] The adhesive skin contact layer may have a thickness of about 1.90 mm to about 5.00 mm, about 1.90 mm to about 4.95 mm, about 1.90 mm to about 4.90 mm, about 1.90 mm to about 4.80 mm, about 1.90 mm to about 4.70 mm, about 1.90 mm to about 4.60 mm, about 1.90 mm to about 4.50 mm, and about 1.90 mm to about 4.40 mm, respectively. Between about 1.90 mm and about 4.30 mm, between about 1.90 mm and about 4.20 mm, between about 1.90 mm and about 4.10 mm, between about 1.90 mm and about 4.00 mm, between about 1.90 mm and about 3.90 mm, between about 1.90 mm and about 3.80 mm, between about 1.90 mm and about 3.70 mm, between about 1.90 mm and about 3.60 mm, between about 1.90 mm and about 3.60 mm Between 0.90mm and about 3.50mm, between about 1.90mm and about 3.40mm, between about 1.90mm and about 3.30mm, between about 1.90mm and about 3.20mm, between about 1.90mm and about 3.10mm, between about 1.90mm and about 3.00mm, between about 1.90mm and about 2.90mm, between about 1.90mm and about 2.80mm, between about 1.90mm and about The endoscopically oriented ...

[0065] The adhesive skin contact layer may have a thickness of about 2.00 mm to about 5.00 mm, about 2.00 mm to about 4.95 mm, about 2.00 mm to about 4.90 mm, about 2.00 mm to about 4.80 mm, about 2.00 mm to about 4.70 mm, about 2.00 mm to about 4.60 mm, about 2.00 mm to about 4.50 mm, about 2.00 mm to about 4.40 mm, about 2.00 mm to about 4.30 mm, about 2.00 mm to about 4.20 mm, about 2.00 mm to about 4.10 mm, about 2.00 mm to about 4.00 mm, about 2.00 mm to about 3.90 mm, about 2.00 mm to about 3.80 mm, about 2.00 mm to about 3.70 mm, and about 2.00 mm to about 3.90 mm. The present invention may include perforations having a diameter of between about 2.00 mm and about 3.50 mm, between about 2.00 mm and about 3.40 mm, between about 2.00 mm and about 3.30 mm, between about 2.00 mm and about 3.20 mm, between about 2.00 mm and about 3.10 mm, between about 2.00 mm and about 3.00 mm, between about 2.00 mm and about 2.90 mm, between about 2.00 mm and about 2.80 mm, between about 2.00 mm and about 2.70 mm, between about 2.00 mm and about 2.60 mm, between about 2.00 mm and about 2.50 mm, between about 2.00 mm and about 2.40 mm, between about 2.00 mm and about 2.30 mm, between about 2.00 mm and about 2.20 mm, or between about 2.00 mm and about 2.10 mm.

[0066] The adhesive skin contact layer may have a thickness of about 2.10 mm to about 5.00 mm, about 2.10 mm to about 4.95 mm, about 2.10 mm to about 4.90 mm, about 2.10 mm to about 4.80 mm, about 2.10 mm to about 4.70 mm, about 2.10 mm to about 4.60 mm, about 2.10 mm to about 4.50 mm, about 2.10 mm to about 4.40 mm, about 2.10 mm to about 4.30 mm, about 2.10 mm to about 4.20 mm, about 2.10 mm to about 4.10 mm, about 2.10 mm to about 4.00 mm, about 2.10 mm to about 3.90 mm, about 2.10 mm to about 3.80 mm, about 2.10 mm to about 3.70 mm, about 2.10 mm to about 4.0 ... The catheter may include perforations having a diameter between about 2.10 mm and about 3.60 mm, between about 2.10 mm and about 3.50 mm, between about 2.10 mm and about 3.40 mm, between about 2.10 mm and about 3.30 mm, between about 2.10 mm and about 3.20 mm, between about 2.10 mm and about 3.10 mm, between about 2.10 mm and about 3.00 mm, between about 2.10 mm and about 2.90 mm, between about 2.10 mm and about 2.80 mm, between about 2.10 mm and about 2.70 mm, between about 2.10 mm and about 2.60 mm, between about 2.10 mm and about 2.50 mm, between about 2.10 mm and about 2.40 mm, between about 2.10 mm and about 2.30 mm, or between about 2.10 mm and about 2.20 mm.

[0067] The adhesive skin contact layer may have a thickness of about 2.20 mm to about 5.00 mm, about 2.20 mm to about 4.95 mm, about 2.20 mm to about 4.90 mm, about 2.20 mm to about 4.80 mm, about 2.20 mm to about 4.70 mm, about 2.20 mm to about 4.60 mm, about 2.20 mm to about 4.50 mm, about 2.20 mm to about 4.40 mm, about 2.20 mm to about 4.30 mm, about 2.20 mm to about 4.20 mm, about 2.20 mm to about 4.10 mm, about 2.20 mm to about 4.00 mm, about 2.20 mm to about 3.90 mm, about 2.20 mm to about 3.80 mm, and about 2.20 mm to about 3.90 mm. The present invention may include perforations having a diameter of between about 2.20 mm and about 3.60 mm, between about 2.20 mm and about 3.50 mm, between about 2.20 mm and about 3.40 mm, between about 2.20 mm and about 3.30 mm, between about 2.20 mm and about 3.20 mm, between about 2.20 mm and about 3.10 mm, between about 2.20 mm and about 3.00 mm, between about 2.20 mm and about 2.90 mm, between about 2.20 mm and about 2.80 mm, between about 2.20 mm and about 2.70 mm, between about 2.20 mm and about 2.60 mm, between about 2.20 mm and about 2.50 mm, between about 2.20 mm and about 2.40 mm, or between about 2.20 mm and about 2.30 mm.

[0068] The adhesive skin contact layer may have a thickness of about 2.25 mm to about 5.00 mm, about 2.25 mm to about 4.95 mm, about 2.25 mm to about 4.90 mm, about 2.25 mm to about 4.80 mm, about 2.25 mm to about 4.70 mm, about 2.25 mm to about 4.60 mm, about 2.25 mm to about 4.50 mm, about 2.25 mm to about 4.40 mm, about 2.25 mm to about 4.30 mm, about 2.25 mm to about 4.20 mm, about 2.25 mm to about 4.10 mm, about 2.25 mm to about 4.00 mm, about 2.25 mm to about 3.90 mm, about 2.25 mm to about 3.80 mm, and about 2.25 mm to about 3.90 mm. The present invention may include perforations having a diameter of between about 2.25 mm and about 3.60 mm, between about 2.25 mm and about 3.50 mm, between about 2.25 mm and about 3.40 mm, between about 2.25 mm and about 3.30 mm, between about 2.25 mm and about 3.20 mm, between about 2.25 mm and about 3.10 mm, between about 2.25 mm and about 3.00 mm, between about 2.25 mm and about 2.90 mm, between about 2.25 mm and about 2.80 mm, between about 2.25 mm and about 2.70 mm, between about 2.25 mm and about 2.60 mm, between about 2.25 mm and about 2.50 mm, between about 2.25 mm and about 2.40 mm, or between about 2.25 mm and about 2.30 mm.

[0069] The adhesive skin contact layer may have a thickness of about 2.30 mm to about 5.00 mm, about 2.30 mm to about 4.95 mm, about 2.30 mm to about 4.90 mm, about 2.30 mm to about 4.80 mm, about 2.30 mm to about 4.70 mm, about 2.30 mm to about 4.60 mm, about 2.30 mm to about 4.50 mm, about 2.30 mm to about 4.40 mm, about 2.30 mm to about 4.30 mm, about 2.30 mm to about 4.20 mm, about 2.30 mm to about 4.10 mm, about 2.30 mm to about 4.00 mm, about 2.30 mm to about 3.90 mm, about 2.30 mm to about 3.80 mm, about 2.30 mm to about 4.60 mm, about 2.30 mm to about 4.70 mm, about 2.30 mm to about 4.80 mm, about 2.30 mm to about 4.90 mm, about 2.30 mm to about 4.90 mm, about 2.30 mm to about 4.80 mm, about 2.30 mm to about 4.70 mm, about 2.30 mm to about 4.60 mm, about 2.30 mm to about 4.50 mm, about 2.30 mm to about 4.40 mm, about 2.30 mm to about 4.30 mm, about 2.30 mm to about 4.20 mm, about 2.30 mm to about 4.10 mm, about 2.30 mm to about 4.00 mm, about 2.30 mm to about 3.90 mm, about 2.30 mm to about 3.80 mm, about 2.30 mm to about 4.60 mm, about 2.3 The present invention may include perforations having a diameter of between about 2.30 mm and about 3.70 mm, between about 2.30 mm and about 3.60 mm, between about 2.30 mm and about 3.50 mm, between about 2.30 mm and about 3.40 mm, between about 2.30 mm and about 3.30 mm, between about 2.30 mm and about 3.20 mm, between about 2.30 mm and about 3.10 mm, between about 2.30 mm and about 3.00 mm, between about 2.30 mm and about 2.90 mm, between about 2.30 mm and about 2.80 mm, between about 2.30 mm and about 2.70 mm, between about 2.30 mm and about 2.60 mm, between about 2.30 mm and about 2.50 mm, or between about 2.30 mm and about 2.40 mm.

[0070] The adhesive skin contact layer may have a thickness of about 2.40 mm to about 5.00 mm, about 2.40 mm to about 4.95 mm, about 2.40 mm to about 4.90 mm, about 2.40 mm to about 4.80 mm, about 2.40 mm to about 4.70 mm, about 2.40 mm to about 4.60 mm, about 2.40 mm to about 4.50 mm, about 2.40 mm to about 4.40 mm, about 2.40 mm to about 4.30 mm, about 2.40 mm to about 4.20 mm, about 2.40 mm to about 4.10 mm, about 2.40 mm to about 4.00 mm, about 2.40 mm to about 3.90 mm, and about 2.40 mm to about 3.90 mm. The present invention may include perforations having a diameter of between about 2.40 mm and about 3.70 mm, between about 2.40 mm and about 3.60 mm, between about 2.40 mm and about 3.50 mm, between about 2.40 mm and about 3.40 mm, between about 2.40 mm and about 3.30 mm, between about 2.40 mm and about 3.20 mm, between about 2.40 mm and about 3.10 mm, between about 2.40 mm and about 3.00 mm, between about 2.40 mm and about 2.90 mm, between about 2.40 mm and about 2.80 mm, between about 2.40 mm and about 2.70 mm, between about 2.40 mm and about 2.60 mm, or between about 2.40 mm and about 2.50 mm.

[0071] The adhesive skin contact layer may have a thickness of about 2.50 mm to about 5.00 mm, about 2.50 mm to about 4.95 mm, about 2.50 mm to about 4.90 mm, about 2.50 mm to about 4.80 mm, about 2.50 mm to about 4.70 mm, about 2.50 mm to about 4.60 mm, about 2.50 mm to about 4.50 mm, about 2.50 mm to about 4.40 mm, about 2.50 mm to about 4.30 mm, about 2.50 mm to about 4.20 mm, about 2.50 mm to about 4.10 mm, about 2.50 mm to about 4.00 mm, about 2.50 mm to about 3.9 ...60 mm, about 2.5 The present invention may include perforations having a diameter of between about 0.50 mm and about 3.80 mm, between about 2.50 mm and about 3.70 mm, between about 2.50 mm and about 3.60 mm, between about 2.50 mm and about 3.50 mm, between about 2.50 mm and about 3.40 mm, between about 2.50 mm and about 3.30 mm, between about 2.50 mm and about 3.20 mm, between about 2.50 mm and about 3.10 mm, between about 2.50 mm and about 3.00 mm, between about 2.50 mm and about 2.90 mm, between about 2.50 mm and about 2.80 mm, between about 2.50 mm and about 2.70 mm, or between about 2.50 mm and about 2.60 mm.

[0072] The adhesive skin contact layer may have a thickness of about 2.60 mm to about 5.00 mm, about 2.60 mm to about 4.95 mm, about 2.60 mm to about 4.90 mm, about 2.60 mm to about 4.80 mm, about 2.60 mm to about 4.70 mm, about 2.60 mm to about 4.60 mm, about 2.60 mm to about 4.50 mm, about 2.60 mm to about 4.40 mm, about 2.60 mm to about 4.30 mm, about 2.60 mm to about 4.20 mm, about 2.60 mm to about 4.10 mm, about 2.60 mm to about 4.00 mm, and about 2.60 mm to about 3.00 mm, respectively. The present invention may include perforations having a diameter of between about 2.60 mm and about 3.80 mm, between about 2.60 mm and about 3.70 mm, between about 2.60 mm and about 3.60 mm, between about 2.60 mm and about 3.50 mm, between about 2.60 mm and about 3.40 mm, between about 2.60 mm and about 3.30 mm, between about 2.60 mm and about 3.20 mm, between about 2.60 mm and about 3.10 mm, between about 2.60 mm and about 3.00 mm, between about 2.60 mm and about 2.90 mm, between about 2.60 mm and about 2.80 mm, or between about 2.60 mm and about 2.70 mm.

[0073] The adhesive skin contact layer may be between about 2.70 mm and about 5.00 mm, between about 2.70 mm and about 4.95 mm, between about 2.70 mm and about 4.90 mm, between about 2.70 mm and about 4.80 mm, between about 2.70 mm and about 4.70 mm, between about 2.70 mm and about 4.60 mm, between about 2.70 mm and about 4.50 mm, between about 2.70 mm and about 4.40 mm, between about 2.70 mm and about 4.30 mm, between about 2.70 mm and about 4.20 mm, between about 2.70 mm and about 4.10 mm, between about 2.70 mm and about 4.00 mm, and between about 2.70 mm and about 4.50 mm. The catheter may include perforations having a diameter of between 0.70 mm and about 3.90 mm, between about 2.70 mm and about 3.80 mm, between about 2.70 mm and about 3.70 mm, between about 2.70 mm and about 3.60 mm, between about 2.70 mm and about 3.50 mm, between about 2.70 mm and about 3.40 mm, between about 2.70 mm and about 3.30 mm, between about 2.70 mm and about 3.20 mm, between about 2.70 mm and about 3.10 mm, between about 2.70 mm and about 3.00 mm, between about 2.70 mm and about 2.90 mm, or between about 2.70 mm and about 2.80 mm.

[0074] The adhesive skin contact layer may have a thickness of about 2.80 mm to about 5.00 mm, about 2.80 mm to about 4.95 mm, about 2.80 mm to about 4.90 mm, about 2.80 mm to about 4.80 mm, about 2.80 mm to about 4.70 mm, about 2.80 mm to about 4.60 mm, about 2.80 mm to about 4.50 mm, about 2.80 mm to about 4.40 mm, about 2.80 mm to about 4.30 mm, about 2.80 mm to about 4.20 mm, about 2.80 mm to about 4.10 mm, and about 2.80 mm to about 4.50 mm, respectively. The present invention may include perforations having a diameter of between about 2.80 mm and about 3.90 mm, between about 2.80 mm and about 3.80 mm, between about 2.80 mm and about 3.70 mm, between about 2.80 mm and about 3.60 mm, between about 2.80 mm and about 3.50 mm, between about 2.80 mm and about 3.40 mm, between about 2.80 mm and about 3.30 mm, between about 2.80 mm and about 3.20 mm, between about 2.80 mm and about 3.10 mm, between about 2.80 mm and about 3.00 mm, or between about 2.80 mm and about 2.90 mm.

[0075] The adhesive skin contact layer may have a thickness of about 2.90 mm to about 5.00 mm, about 2.90 mm to about 4.95 mm, about 2.90 mm to about 4.90 mm, about 2.90 mm to about 4.80 mm, about 2.90 mm to about 4.70 mm, about 2.90 mm to about 4.60 mm, about 2.90 mm to about 4.50 mm, about 2.90 mm to about 4.40 mm, about 2.90 mm to about 4.30 mm, about 2.90 mm to about 4.20 mm, about 2.90 mm to about 4.10 mm, about 2.90 mm to about 4.20 mm, about 2.90 mm to about 4.30 mm, about 2.90 mm to about 4.40 mm, about 2.90 mm to about 4.50 mm, about 2.90 mm to about 4.20 mm, about 2.90 mm to about 4.30 mm, about 2.90 mm to about 4.20 mm, about 2.90 mm to about 4.30 mm, about 2.90 mm to about 4.4 ... The catheter may include perforations having a diameter of between 0.90 mm and about 4.00 mm, between about 2.90 mm and about 3.90 mm, between about 2.90 mm and about 3.80 mm, between about 2.90 mm and about 3.70 mm, between about 2.90 mm and about 3.60 mm, between about 2.90 mm and about 3.50 mm, between about 2.90 mm and about 3.40 mm, between about 2.90 mm and about 3.30 mm, between about 2.90 mm and about 3.20 mm, between about 2.90 mm and about 3.10 mm, or between about 2.90 mm and about 3.00 mm.

[0076] The adhesive skin contact layer may have a thickness of about 3.00 mm to about 5.00 mm, about 3.00 mm to about 4.95 mm, about 3.00 mm to about 4.90 mm, about 3.00 mm to about 4.80 mm, about 3.00 mm to about 4.70 mm, about 3.00 mm to about 4.60 mm, about 3.00 mm to about 4.50 mm, about 3.00 mm to about 4.40 mm, about 3.00 mm to about 4.30 mm, about 3.00 mm to about 4.20 mm, and about 3.00 mm to about 4.50 mm, respectively. The catheter may include perforations having a diameter of between about 0.10 mm, between about 3.00 mm and about 4.00 mm, between about 3.00 mm and about 3.90 mm, between about 3.00 mm and about 3.80 mm, between about 3.00 mm and about 3.70 mm, between about 3.00 mm and about 3.60 mm, between about 3.00 mm and about 3.50 mm, between about 3.00 mm and about 3.40 mm, between about 3.00 mm and about 3.30 mm, between about 3.00 mm and about 3.20 mm, or between about 3.00 mm and about 3.10 mm.

[0077] The adhesive skin contact layer may have a thickness of between about 3.10 mm and about 5.00 mm, between about 3.10 mm and about 4.95 mm, between about 3.10 mm and about 4.90 mm, between about 3.10 mm and about 4.80 mm, between about 3.10 mm and about 4.70 mm, between about 3.10 mm and about 4.60 mm, between about 3.10 mm and about 4.50 mm, between about 3.10 mm and about 4.40 mm, between about 3.10 mm and about 4.30 mm, between about 3.10 mm and about 4.20 mm, and between about 3.10 mm and about 4.50 mm, respectively. The catheter may include perforations having a diameter of between 0.10 mm and about 4.10 mm, between about 3.10 mm and about 4.00 mm, between about 3.10 mm and about 3.90 mm, between about 3.10 mm and about 3.80 mm, between about 3.10 mm and about 3.70 mm, between about 3.10 mm and about 3.60 mm, between about 3.10 mm and about 3.50 mm, between about 3.10 mm and about 3.40 mm, between about 3.10 mm and about 3.30 mm, or between about 3.10 mm and about 3.20 mm.

[0078] The adhesive skin contact layer may have a thickness of about 3.20 mm to about 5.00 mm, about 3.20 mm to about 4.95 mm, about 3.20 mm to about 4.90 mm, about 3.20 mm to about 4.80 mm, about 3.20 mm to about 4.70 mm, about 3.20 mm to about 4.60 mm, about 3.20 mm to about 4.50 mm, about 3.20 mm to about 4.40 mm, about 3.20 mm to about 4.30 mm, and about 3.20 mm to about 4.50 mm, respectively. The endoscopically oriented ...

[0079] The adhesive skin contact layer may have a thickness of between about 3.30 mm and about 5.00 mm, between about 3.30 mm and about 4.95 mm, between about 3.30 mm and about 4.90 mm, between about 3.30 mm and about 4.80 mm, between about 3.30 mm and about 4.70 mm, between about 3.30 mm and about 4.60 mm, between about 3.30 mm and about 4.50 mm, between about 3.30 mm and about 4.40 mm, between about 3.30 mm and about 4.30 mm, and between about 3.30 mm and about 4.30 mm, respectively. The catheter may include perforations having a diameter of between about 3.30 mm and about 4.20 mm, between about 3.30 mm and about 4.10 mm, between about 3.30 mm and about 4.00 mm, between about 3.30 mm and about 3.90 mm, between about 3.30 mm and about 3.80 mm, between about 3.30 mm and about 3.70 mm, between about 3.30 mm and about 3.60 mm, between about 3.30 mm and about 3.50 mm, or between about 3.30 mm and about 3.40 mm.

[0080] The adhesive skin contact layer may have a thickness of about 3.40 mm to about 5.00 mm, about 3.40 mm to about 4.95 mm, about 3.40 mm to about 4.90 mm, about 3.40 mm to about 4.80 mm, about 3.40 mm to about 4.70 mm, about 3.40 mm to about 4.60 mm, about 3.40 mm to about 4.50 mm, about 3.40 mm to about 4.40 mm, and about 3.40 mm to about 4.40 mm, respectively. The endoscopically oriented ...

[0081] The adhesive skin contact layer may be between about 3.50 mm and about 5.00 mm, between about 3.50 mm and about 4.95 mm, between about 3.50 mm and about 4.90 mm, between about 3.50 mm and about 4.80 mm, between about 3.50 mm and about 4.70 mm, between about 3.50 mm and about 4.60 mm, between about 3.50 mm and about 4.50 mm, between about 3.50 mm and about 4.40 mm, and between about 3.50 mm and about 4.60 mm, respectively. The catheter may include perforations having a diameter of between 0.50 mm and about 4.30 mm, between about 3.50 mm and about 4.20 mm, between about 3.50 mm and about 4.10 mm, between about 3.50 mm and about 4.00 mm, between about 3.50 mm and about 3.90 mm, between about 3.50 mm and about 3.80 mm, between about 3.50 mm and about 3.70 mm, or between about 3.50 mm and about 3.60 mm.

[0082] The adhesive skin contact layer may comprise perforations having a diameter of between about 3.60 mm and about 5.00 mm, between about 3.60 mm and about 4.95 mm, between about 3.60 mm and about 4.90 mm, between about 3.60 mm and about 4.80 mm, between about 3.60 mm and about 4.70 mm, between about 3.60 mm and about 4.60 mm, between about 3.60 mm and about 4.50 mm, between about 3.60 mm and about 4.40 mm, between about 3.60 mm and about 4.30 mm, between about 3.60 mm and about 4.20 mm, between about 3.60 mm and about 4.10 mm, between about 3.60 mm and about 4.00 mm, between about 3.60 mm and about 3.90 mm, between about 3.60 mm and about 3.80 mm, or between about 3.60 mm and about 3.70 mm, respectively.

[0083] The adhesive skin contact layer may comprise perforations having a diameter of between about 3.70 mm and about 5.00 mm, between about 3.70 mm and about 4.95 mm, between about 3.70 mm and about 4.90 mm, between about 3.70 mm and about 4.80 mm, between about 3.70 mm and about 4.70 mm, between about 3.70 mm and about 4.60 mm, between about 3.70 mm and about 4.50 mm, between about 3.70 mm and about 4.40 mm, between about 3.70 mm and about 4.30 mm, between about 3.70 mm and about 4.20 mm, between about 3.70 mm and about 4.10 mm, between about 3.70 mm and about 4.00 mm, between about 3.70 mm and about 3.90 mm, or between about 3.70 mm and about 3.80 mm, respectively.

[0084] The adhesive skin contact layer may comprise perforations having a diameter of between about 3.80 mm and about 5.00 mm, between about 3.80 mm and about 4.95 mm, between about 3.80 mm and about 4.90 mm, between about 3.80 mm and about 4.80 mm, between about 3.80 mm and about 4.70 mm, between about 3.80 mm and about 4.60 mm, between about 3.80 mm and about 4.50 mm, between about 3.80 mm and about 4.40 mm, between about 3.80 mm and about 4.30 mm, between about 3.80 mm and about 4.20 mm, between about 3.80 mm and about 4.10 mm, between about 3.80 mm and about 4.00 mm, or between about 3.80 mm and about 3.90 mm, respectively.

[0085] The adhesive skin contact layer may comprise perforations having a diameter of between about 3.90 mm and about 5.00 mm, between about 3.90 mm and about 4.95 mm, between about 3.90 mm and about 4.90 mm, between about 3.90 mm and about 4.80 mm, between about 3.90 mm and about 4.70 mm, between about 3.90 mm and about 4.60 mm, between about 3.90 mm and about 4.50 mm, between about 3.90 mm and about 4.40 mm, between about 3.90 mm and about 4.30 mm, between about 3.90 mm and about 4.20 mm, between about 3.90 mm and about 4.10 mm, or between about 3.90 mm and about 4.00 mm, respectively.

[0086] The adhesive skin contact layer may include perforations having a diameter of between about 4.00 mm and about 5.00 mm, between about 4.00 mm and about 4.95 mm, between about 4.00 mm and about 4.90 mm, between about 4.00 mm and about 4.80 mm, between about 4.00 mm and about 4.70 mm, between about 4.00 mm and about 4.60 mm, between about 4.00 mm and about 4.50 mm, between about 4.00 mm and about 4.40 mm, between about 4.00 mm and about 4.30 mm, between about 4.00 mm and about 4.20 mm, or between about 4.00 mm and about 4.10 mm, respectively.

[0087] The adhesive skin contact layer may include perforations having a diameter of between about 4.10 mm and about 5.00 mm, between about 4.10 mm and about 4.95 mm, between about 4.10 mm and about 4.90 mm, between about 4.10 mm and about 4.80 mm, between about 4.10 mm and about 4.70 mm, between about 4.10 mm and about 4.60 mm, between about 4.10 mm and about 4.50 mm, between about 4.10 mm and about 4.40 mm, between about 4.10 mm and about 4.30 mm, or between about 4.10 mm and about 4.20 mm, respectively.

[0088] The adhesive skin contact layer may include perforations having a diameter of between about 4.20 mm and about 5.00 mm, between about 4.20 mm and about 4.95 mm, between about 4.20 mm and about 4.90 mm, between about 4.20 mm and about 4.80 mm, between about 4.20 mm and about 4.70 mm, between about 4.20 mm and about 4.60 mm, between about 4.20 mm and about 4.50 mm, between about 4.20 mm and about 4.40 mm, or between about 4.20 mm and about 4.30 mm, respectively.

[0089] The adhesive skin contact layer may include perforations having a diameter of between about 4.30 mm and about 5.00 mm, between about 4.30 mm and about 4.95 mm, between about 4.30 mm and about 4.90 mm, between about 4.30 mm and about 4.80 mm, between about 4.30 mm and about 4.70 mm, between about 4.30 mm and about 4.60 mm, between about 4.30 mm and about 4.50 mm, or between about 4.30 mm and about 4.40 mm, respectively.

[0090] The adhesive skin contact layer may include perforations having a diameter of between about 4.40 mm and about 5.00 mm, between about 4.40 mm and about 4.95 mm, between about 4.40 mm and about 4.90 mm, between about 4.40 mm and about 4.80 mm, between about 4.40 mm and about 4.70 mm, between about 4.40 mm and about 4.60 mm, or between about 4.40 mm and about 4.50 mm, respectively.

[0091] The adhesive skin contact layer may include perforations having a diameter of between about 4.50 mm and about 5.00 mm, between about 4.50 mm and about 4.95 mm, between about 4.50 mm and about 4.90 mm, between about 4.50 mm and about 4.80 mm, between about 4.50 mm and about 4.70 mm, or between about 4.50 mm and about 4.60 mm, respectively.

[0092] The adhesive skin contact layer may include perforations having a diameter of between about 4.60 mm and about 5.00 mm, between about 4.60 mm and about 4.95 mm, between about 4.60 mm and about 4.90 mm, between about 4.60 mm and about 4.80 mm, or between about 4.60 mm and about 4.70 mm, respectively.

[0093] The adhesive skin contact layer may include perforations having a diameter of between about 4.70 mm and about 5.00 mm, between about 4.70 mm and about 4.95 mm, between about 4.70 mm and about 4.90 mm, or between about 4.70 mm and about 4.80 mm, respectively.

[0094] The adhesive skin contact layer may include perforations each having a diameter between about 4.80 mm and about 5.00 mm, between about 4.80 mm and about 4.95 mm, or between about 4.80 mm and about 4.90 mm.

[0095] The adhesive skin contact layer may include perforations each having a diameter between about 4.90 mm and about 5.00 mm, or between about 4.90 mm and about 4.95 mm.

[0096] The adhesive skin contact layer may include perforations each having a diameter of between about 4.95 mm and about 5.00 mm.

[0097] The perforations are arranged in a square-packed layout or a triangle-packed layout.

[0098] By square-packed layout, it is meant that all, or a significant proportion, e.g., at least about 60%, at least about 65%, at least about 70%, at least about 75%, at least about 80%, at least about 85%, at least about 90%, or at least about 95%, of the perforations are arranged in parallel rows and columns.

[0099] By triangular packing layout, it is meant that all, or a significant proportion, e.g., at least about 60%, at least about 65%, at least about 70%, at least about 75%, at least about 80%, at least about 85%, at least about 90%, or at least about 95%, of the perforations are located in adjacent perforation rows that are offset from one another. This means that perforations in a first row are not located adjacent to perforations in an adjacent second row, but instead the perforations in the first row are located adjacent to gaps between perforations in the second row, or adjacent to some of the gaps and some of the perforations in the second row.

[0100] Each perforation may comprise an opening comprising a 2D shape selected from the group comprising a circle, an oval, a triangle, a square, a rectangle, a hexagon, or an octagon.

[0101] Those skilled in the art will understand that the size of an aperture is defined according to the shape of the aperture. In some embodiments, the size of a circle is the diameter. In other embodiments, the size of an ellipse is the diameter of its major axis. In further embodiments, the size of a hexagon is the longest diagonal, and the size of a triangular, square, rectangular, octagonal, or any other polygonal perforation is the longest side.

[0102] The perforations may have a pitch (i.e., the distance between the center point of one perforation and the center point of an adjacent perforation) in the first direction of about 6.0 mm, about 6.5 mm, about 7.0 mm, about 7.5 mm, about 8.0 mm, about 8.5 mm, about 9.0 mm, about 9.5 mm, about 10.0 mm, about 10.5 mm, about 11.0 mm, about 11.5 mm, or about 12.0 mm.

[0103] The perforations may have a pitch in the first direction of at least about 6.0 mm, at least about 6.5 mm, at least about 7.0 mm, at least about 7.5 mm, at least about 8.0 mm, at least about 8.5 mm, at least about 9.0 mm, at least about 9.5 mm, at least about 10.0 mm, at least about 10.5 mm, at least about 11.0 mm, at least about 11.5 mm, or at least about 12.0 mm.

[0104] The perforations may have a pitch in the first direction of about 6.0 mm or less, about 6.5 mm or less, about 7.0 mm or less, about 7.5 mm or less, about 8.0 mm or less, about 8.5 mm or less, about 9.0 mm or less, about 9.5 mm or less, about 10.0 mm or less, about 10.5 mm or less, about 11.0 mm or less, about 11.5 mm or less, or about 12.0 mm or less.

[0105] The perforations may have a pitch in the first direction of between about 6.0 mm and about 10.0 mm, between about 6.5 mm and about 9.5 mm, between about 7.0 mm and about 9.0 mm, between about 7.5 mm and about 8.5 mm, between about 7.75 mm and about 8.25 mm, or about 8.00 mm.

[0106] The perforations may have a pitch in the first direction of between about 6.0 mm and about 10.0 mm, between about 6.0 mm and about 9.5 mm, between about 6.0 mm and about 9.0 mm, between about 6.0 mm and about 8.50 mm, between about 6.0 mm and about 8.0 mm, between about 6.0 mm and about 7.5 mm, between about 6.0 mm and about 7.0 mm, or between about 6.0 mm and about 6.5 mm.

[0107] The perforations may have a pitch in the first direction of between about 6.5 mm and about 10.0 mm, between about 6.5 mm and about 9.5 mm, between about 6.5 mm and about 9.0 mm, between about 6.5 mm and about 8.50 mm, between about 6.5 mm and about 8.0 mm, between about 6.5 mm and about 7.5 mm, or between about 6.5 mm and about 7.0 mm.

[0108] The perforations may have a pitch in the first direction of between about 7.0 mm and about 10.0 mm, between about 7.0 mm and about 9.5 mm, between about 7.0 mm and about 9.0 mm, between about 7.0 mm and about 8.50 mm, between about 7.0 mm and about 8.0 mm, or between about 7.0 mm and about 7.5 mm.

[0109] The perforations may have a pitch in the first direction of between about 7.5 mm and about 10.0 mm, between about 7.5 mm and about 9.5 mm, between about 7.5 mm and about 9.0 mm, between about 7.5 mm and about 8.50 mm, or between about 7.5 mm and about 8.0 mm.

[0110] The perforations may have a pitch in the first direction of between about 8.0 mm and about 10.0 mm, between about 8.0 mm and about 9.5 mm, between about 8.0 mm and about 9.0 mm, or between about 8.0 mm and about 8.50 mm.

[0111] The perforations may have a pitch in the first direction of between about 8.5 mm and about 10.0 mm, between about 8.5 mm and about 9.5 mm, or between about 8.5 mm and about 9.0 mm.

[0112] The perforations may have a pitch in the first direction of between about 9.0 mm and about 10.0 mm, or between about 9.0 mm and about 9.5 mm.

[0113] The perforations may have a pitch in the first direction of between about 9.5 mm and about 10.0 mm.

[0114] The perforations may have a pitch in the second direction of about 3.0 mm, about 3.5 mm, about 4.0 mm, about 4.5 mm, about 5.0 mm, about 5.5 mm, about 5.6 mm, about 6.0 mm, about 6.5 mm, about 7.0 mm, about 7.5 mm, about 8.0 mm, about 8.5 mm, about 9.0 mm, about 9.5 mm, or about 10.0 mm.

[0115] The perforations may have a pitch in the second direction of at least about 3.0 mm, at least about 3.5 mm, at least about 4.0 mm, at least about 4.5 mm, at least about 5.0 mm, at least about 5.5 mm, at least about 5.6 mm, at least about 6.0 mm, at least about 6.5 mm, at least about 7.0 mm, at least about 7.5 mm, at least about 8.0 mm, at least about 8.5 mm, at least about 9.0 mm, at least about 9.5 mm, or at least about 10.0 mm.

[0116] The perforations may have a pitch in the second direction of about 3.0 mm or less, about 3.5 mm or less, about 4.0 mm or less, about 4.5 mm or less, about 5.0 mm or less, about 5.5 mm or less, about 5.6 mm or less, about 6.0 mm or less, about 6.5 mm or less, about 7.0 mm or less, about 7.5 mm or less, about 8.0 mm or less, about 8.5 mm or less, about 9.0 mm or less, about 9.5 mm or less, or about 10.0 mm or less.

[0117] The perforations may have a pitch in the second direction of between about 4.00 mm and about 7.00 mm, between about 4.25 mm and about 6.75 mm, between about 4.50 mm and about 6.50 mm, between about 4.75 mm and about 6.25 mm, between about 5.00 mm and about 6.00 mm, between about 5.25 mm and about 5.75 mm, between about 5.40 mm and about 5.70 mm, between about 5.50 mm and about 5.65 mm, between about 5.55 mm and about 5.62 mm, or 5.60 mm.

[0118] The perforations may have a pitch in the second direction of between about 3.0 mm and about 10.0 mm, between about 3.0 mm and about 9.5 mm, between about 3.0 mm and about 9.0 mm, between about 3.0 mm and about 8.5 mm, between about 3.0 mm and about 8.0 mm, between about 3.0 mm and about 7.5 mm, between about 3.0 mm and about 7.0 mm, between about 3.0 mm and about 6.5 mm, between about 3.0 mm and about 6.0 mm, between about 3.0 mm and about 5.5 mm, between about 3.0 mm and about 5.0 mm, between about 3.0 mm and about 4.5 mm, between about 3.0 mm and about 4.0 mm, or between about 3.0 mm and about 3.5 mm.

[0119] The perforations may have a pitch in the second direction of between about 3.5 mm and about 10.0 mm, between about 3.5 mm and about 9.5 mm, between about 3.5 mm and about 9.0 mm, between about 3.5 mm and about 8.5 mm, between about 3.5 mm and about 8.0 mm, between about 3.5 mm and about 7.5 mm, between about 3.5 mm and about 7.0 mm, between about 3.5 mm and about 6.5 mm, between about 3.5 mm and about 6.0 mm, between about 3.5 mm and about 5.5 mm, between about 3.5 mm and about 5.0 mm, between about 3.5 mm and about 4.5 mm, or between about 3.5 mm and about 4.0 mm.

[0120] The perforations may have a pitch in the second direction of between about 4.0 mm and about 10.0 mm, between about 4.0 mm and about 9.5 mm, between about 4.0 mm and about 9.0 mm, between about 4.0 mm and about 8.5 mm, between about 4.0 mm and about 8.0 mm, between about 4.0 mm and about 7.5 mm, between about 4.0 mm and about 7.0 mm, between about 4.0 mm and about 6.5 mm, between about 4.0 mm and about 6.0 mm, between about 4.0 mm and about 5.5 mm, between about 4.0 mm and about 5.0 mm, or between about 4.5 mm and about 4.5 mm.

[0121] The perforations may have a pitch in the second direction of between about 4.5 mm and about 10.0 mm, between about 4.5 mm and about 9.5 mm, between about 4.5 mm and about 9.0 mm, between about 4.5 mm and about 8.5 mm, between about 4.5 mm and about 8.0 mm, between about 4.5 mm and about 7.5 mm, between about 4.5 mm and about 7.0 mm, between about 4.5 mm and about 6.5 mm, between about 4.5 mm and about 6.0 mm, between about 4.5 mm and about 5.5 mm, or between about 4.5 mm and about 5.0 mm.

[0122] The perforations may have a pitch in the second direction of between about 5.0 mm and about 10.0 mm, between about 5.0 mm and about 9.5 mm, between about 5.0 mm and about 9.0 mm, between about 5.0 mm and about 8.5 mm, between about 5.0 mm and about 8.0 mm, between about 5.0 mm and about 7.5 mm, between about 5.0 mm and about 7.0 mm, between about 5.0 mm and about 6.5 mm, between about 5.0 mm and about 6.0 mm, or between about 5.5 mm and about 5.5 mm.

[0123] The perforations may have a pitch in the second direction of between about 5.5 mm and about 10.0 mm, between about 5.5 mm and about 9.5 mm, between about 5.5 mm and about 9.0 mm, between about 5.5 mm and about 8.5 mm, between about 5.5 mm and about 8.0 mm, between about 5.5 mm and about 7.5 mm, between about 5.5 mm and about 7.0 mm, between about 5.5 mm and about 6.5 mm, or between about 5.5 mm and about 6.0 mm.

[0124] The perforations may have a pitch in the second direction of between about 6.0 mm and about 10.0 mm, between about 6.0 mm and about 9.5 mm, between about 6.0 mm and about 9.0 mm, between about 6.0 mm and about 8.5 mm, between about 6.0 mm and about 8.0 mm, between about 6.0 mm and about 7.5 mm, between about 6.0 mm and about 7.0 mm, or between about 6.0 mm and about 6.5 mm.

[0125] The perforations may have a pitch in the second direction of between about 6.5 mm and about 10.0 mm, between about 6.5 mm and about 9.5 mm, between about 6.5 mm and about 9.0 mm, between about 6.5 mm and about 8.5 mm, between about 6.5 mm and about 8.0 mm, between about 6.5 mm and about 7.5 mm, or between about 6.5 mm and about 7.0 mm.

[0126] The perforations may have a pitch in the second direction of between about 7.0 mm and about 10.0 mm, between about 7.0 mm and about 9.5 mm, between about 7.0 mm and about 9.0 mm, between about 7.0 mm and about 8.5 mm, between about 7.0 mm and about 8.0 mm, or between about 7.0 mm and about 7.5 mm.

[0127] The perforations may have a pitch in the second direction of between about 7.5 mm and about 10.0 mm, between about 7.5 mm and about 9.5 mm, between about 7.5 mm and about 9.0 mm, between about 7.5 mm and about 8.5 mm, or between about 7.5 mm and about 8.0 mm.

[0128] The perforations may have a pitch in the second direction of between about 8.0 mm and about 10.0 mm, between about 8.0 mm and about 9.5 mm, between about 8.0 mm and about 9.0 mm, or between about 8.0 mm and about 8.5 mm.

[0129] The perforations may have a pitch in the second direction of between about 8.5 mm and about 10.0 mm, between about 8.5 mm and about 9.5 mm, or between about 8.5 mm and about 9.0 mm.

[0130] The perforations may have a pitch in the second direction of between about 9.0 mm and about 10.0 mm, or between about 9.0 mm and about 9.5 mm.

[0131] The perforations may have a pitch in the second direction of between about 9.5 mm and about 10.0 mm.

[0132] Advantageously, the pitch of the perforations in the present invention provides a good perforated:non-perforated ratio of the adhesive skin contact layer, particularly in embodiments where the pitch in the first direction is between about 7 mm and about 9 mm, particularly about 8 mm, and the pitch in the second direction is between about 5.00 mm and about 6.00 mm, particularly about 5.6 mm. Beneficially, this provides effective moisture evaporation (e.g., preventing pooling) and strong adhesion to the patient. Surprisingly and advantageously, it has been found that the adhesive skin contact layer of the present invention, particularly in embodiments having the above perforation pitches, remains adhered to the user for at least 7 days.

[0133] The adhesive skin contact layer may include at least two perforations having different diameters.

[0134] The difference between the diameter of the largest and smallest perforation is approximately 4.50 mm or less, approximately 4.40 mm or less, approximately mm or less, approximately 4.35 mm or less, approximately 4.30 mm or less, approximately 4.25 mm or less, approximately 4.20 mm or less, approximately 4.15 mm or less, approximately 4.10 mm or less, approximately 4.05 mm or less, approximately 4.00 mm or less, approximately 3.95 mm or less, approximately 3.90 mm or less, approximately 3.85 mm or less, approximately 3.80 mm or less, approximately 3.75 mm or less, approximately 3.70 mm or less, approximately 3.65 mm or less, approximately 3.60 mm or less, approximately 3.55 mm or less, approximately 3.50 mm or less, approximately 3.45 mm. Below m, approximately 3.40mm or less, approximately 3.35mm or less, approximately 3.30mm or less, approximately 3.25mm or less, approximately 3.20mm or less, approximately 3.15mm or less, approximately 3.10mm or less, approximately 3.05mm or less, approximately 3.00mm or less, approximately 2.95mm or less, approximately 2.90mm or less, approximately 2.85mm or less, approximately 2.80mm or less, approximately 2.75mm or less, approximately 2.70mm or less, approximately 2.65mm or less, approximately 2.60mm or less, approximately 2.55mm or less, approximately 2.50mm or less, approximately 2.45mm or less, approximately 2.40mm or less, approximately 2.35mm or less, approximately 2.30mm Below, approximately 2.25mm, approximately 2.20mm, approximately 2.15mm, approximately 2.10mm, approximately 2.05mm, approximately 2.00mm, approximately 1.95mm, approximately 1.90mm, approximately 1.85mm, approximately 1.80mm, approximately 1.75mm, approximately 1.70mm, approximately 1.65mm, approximately 1.60mm, approximately 1.55mm, approximately 1.50mm, approximately 1.45mm, approximately 1.40mm, approximately 1.35mm, approximately 1.30mm, approximately 1.25mm, approximately 1.20mm, approximately 1.15mm and below Below, approximately 1.10mm below, approximately 1.05mm below, approximately 1.00mm below, approximately 0.95mm below, approximately 0.90mm below, approximately 0.85mm below, approximately 0.80mm below, approximately 0.75mm below, approximately 0.70mm below, approximately 0.65mm below, approximately 0.60mm below, approximately 0.55mm below, approximately 0.50mm below, approximately 0.45mm below, approximately 0.40mm below, approximately 0.35mm below, approximately 0.30mm below, approximately 0.25mm below, approximately 0.20mm below, approximately 0.15mm below, approximately 0.10mm below, and approximately 0.05mm below.

[0135] Perforation, about 1300mm 2 Approximately 1350mm2 , approximately 1400 mm 2 , about 1450mm 2 , about 1500mm 2 , about 1550mm 2 , about 1600mm 2 , approximately 1650 mm 2 , about 1700mm 2 , about 1750mm 2 , about 1800mm 2 , approximately 1850 mm 2 , approximately 1900 mm 2 , about 1950mm 2 , about 2000mm 2 , about 2050mm 2 , about 2100mm 2 , about 2150mm 2 , about 2200mm 2 , about 2250mm 2 , about 2300mm 2 , about 2350mm 2 , about 2400mm 2 , about 2450mm 2 , or approximately 2500 mm 2 may have a total area of

[0136] The drilling is approximately 1300 mm 2 Approximately 2500mm from 2 Between the two, approximately 1400 mm 2 Approximately 2450mm from 2 Between the two, approximately 1500mm 2 Approximately 2400mm from 2 Between the two, approximately 1600mm 2 Approximately 2350mm from 2 Between the two, approximately 1700mm 2 Approximately 2300mm from 2 Between the two, approximately 1800mm 2 Approximately 2250mm from 2 Between the two, approximately 1900mm 2 Approximately 2200mm from 2 Between the two, approximately 2000 mm 2 Approximately 2150mm from 2 Between or about 2100mm 2 may have a total area of

[0137] The percentage of perforations may be between about 5% and about 50%, between about 6% and about 45%, between about 7% and about 40%, between about 8% and about 35%, between about 9% and about 30%, between about 10% and about 25%, between about 10% and about 20%, between about 10% and about 15%, or about 12% of the area of ​​the adhesive skin contact layer.

[0138] The percentage of perforations may be about 5%, about 6%, about 7%, about 8%, about 9%, about 10%, about 12%, about 14%, about 16%, about 18%, about 20%, about 22%, about 24%, about 26%, about 28%, about 30%, about 32%, about 34%, about 36%, about 38%, about 40%, about 42%, about 44%, about 46%, about 48%, or about 50% of the area of ​​the adhesive skin contact layer.

[0139] The percentage of perforations may be at least about 5%, at least about 6%, at least about 7%, at least about 8%, at least about 9%, at least about 10%, at least about 12%, at least about 14%, at least about 16%, at least about 18%, at least about 20%, at least about 22%, at least about 24%, at least about 26%, at least about 28%, at least about 30%, at least about 32%, at least about 34%, at least about 36%, at least about 38%, at least about 40%, at least about 42%, at least about 44%, at least about 46%, at least about 48%, or at least about 50% of the area of ​​the adhesive skin contact layer.

[0140] The percentage of perforations may be about 5% or less, about 6% or less, about 7% or less, about 8% or less, about 9% or less, about 10% or less, about 12% or less, about 14% or less, about 16% or less, about 18% or less, about 20% or less, about 22% or less, about 24% or less, about 26% or less, about 28% or less, about 30% or less, about 32% or less, about 34% or less, about 36% or less, about 38% or less, about 40% or less, about 42% or less, about 44% or less, about 46% or less, about 48% or less, or about 50% or less of the area of ​​the adhesive skin contact layer.

[0141] The adhesive skin contact layer may have a thickness of about 0.5 mm, about 0.6 mm, about 0.7 mm, about 0.8 mm, about 0.9 mm, about 1.0 mm, about 1.1 mm, about 1.2 mm, about 1.3 mm, about 1.4 mm, or about 1.5 mm.

[0142] The adhesive skin contact layer may have a thickness of at least about 0.5 mm, at least about 0.6 mm, at least about 0.7 mm, at least about 0.8 mm, at least about 0.9 mm, at least about 1.0 mm, at least about 1.1 mm, at least about 1.2 mm, at least about 1.3 mm, at least about 1.4 mm, or at least about 1.5 mm.

[0143] The adhesive skin contact layer may have a thickness of about 0.5 mm or less, about 0.6 mm or less, about 0.7 mm or less, about 0.8 mm or less, about 0.9 mm or less, about 1.0 mm or less, about 1.1 mm or less, about 1.2 mm or less, about 1.3 mm or less, about 1.4 mm or less, or about 1.5 mm or less.

[0144] The adhesive skin contact layer may have a thickness of between about 0.5 mm and about 1.5 mm, between about 0.6 mm and about 1.4 mm, between about 0.7 mm and about 1.3 mm, between about 0.8 mm and about 1.2 mm, between about 0.9 mm and about 1.1 mm, or about 1.0 mm.

[0145] The perforations may be formed by punching, a hot pin process, a laser ablation process, or an ultrasonic process. In particular, the perforations may be formed by mechanical punching. Advantageously, the mechanical punching prevents or at least significantly reduces the formation of doughnut or volcano structures around the perforations after the perforations are formed. The perforations may be formed by mechanical punching into an adhesive layer that includes a release liner covering at least one surface of the adhesive layer. After mechanical punching into the adhesive layer, the release liner may be removed from at least one surface of the adhesive layer to remove any "slugs" remaining after the mechanical punching.

[0146] The perforations may be formed by punching, a hot pin process, or an ultrasonic process.

[0147] Each of the perforations may be the same size, or at least substantially the same size.

[0148] The adhesive skin contact layer may be any shape, such as a circle, oval, triangle, square, rectangle, hexagon, octagon, or any irregular shape such as an irregular rectangle.

[0149] The adhesive skin contact layer may include a window portion. Thus, the adhesive skin contact layer may be an adhesive skin contact boundary layer having a peripheral shape. The window portion may be located more centrally than the periphery of the adhesive skin contact layer. The boundary layer may include an outer peripheral edge defining the outer shape of the boundary, such as a square, rectangle, or circle. The boundary layer may include an inner peripheral edge defining the shape of the window portion. The window portion may have the same or a similar shape as the outer peripheral edge of the boundary layer. In use, the wound dressing may be adhered to the skin surface such that the wound site is located within the window portion. Therefore, the adhesive skin contact layer does not directly contact the wound site, but partially or entirely surrounds it. Thus, the adhesive skin contact layer may only contact intact skin around the wound. Advantageously, this means that the wound dressing does not adhere directly to the wound site, thereby minimizing wound damage and patient discomfort when the wound dressing is removed from the patient. The window portion allows the adhesive skin contact layer to adhere to the periphery of the wound so that the wound site is located within the window portion, thereby allowing contact or fluid communication with the patient's wound, e.g., preferably with the wound contact layer, when the wound dressing is applied (or stuck) to the patient's skin.

[0150] In embodiments including rectangular windows, a greater overlap between the absorbent structure (i.e., the structure including the wound contact layer, transfer layer, and / or superabsorbent layer) and the adhesive skin contact layer was provided. The increased overlap was found at or near (or toward) corresponding corners of the adhesive skin contact layer and the absorbent structure. Advantageously, the greater overlap allows for a greater surface area of ​​adhesion between the adhesive skin contact layer and the absorbent structure, thereby providing greater structural integrity to the wound dressing. Greater structural integrity means that the absorbent structure maintains its position within the wound dressing during use, reducing the likelihood of it becoming dislodged from its position within the wound dressing, especially when the wound dressing is wet with exudate or other bodily fluids.

[0151] The window is approximately 900 mm 2 Approximately 50,000 mm 2 Between the two, approximately 1600mm 2 Approximately 45,000 mm 2 Between the two, approximately 2500 mm 2 Approximately 40,000 mm 2 Between the two, approximately 3600mm 2 Approximately 35,000 mm 2 Between the two, approximately 4900mm 2 Approximately 30,000 mm from 2 Between the two, approximately 6400mm 2 Approximately 25,000 mm from 2 Between the two, approximately 8100mm 2 Approximately 20,000 mm from 2 Between the two, approximately 10,000 mm 2 Approximately 15,000 mm from 2 Between or about 12,500 mm 2 may have an area of

[0152] The window is approximately 900 mm 2 , about 1200mm 2 , about 1600mm 2 , about 2000mm 2 , about 2500mm 2 , about 3000mm 2 , about 3600mm 2 , approximately 4000 mm2 , approximately 4400 mm 2 , approximately 4900 mm 2 , approximately 5400 mm 2 , about 5900mm 2 , approximately 6400 mm 2 , approximately 6900 mm 2 , about 7500mm 2 , approximately 8100 mm 2 , approximately 8700 mm 2 , about 9300mm 2 , approximately 10,000 mm 2 , approximately 12,500 mm 2 , approximately 15,000 mm 2 , approximately 17,500 mm 2 , approximately 20,000 mm 2 , approximately 22,500 mm 2 , approximately 25,000 mm 2 , approximately 27,500 mm 2 , approximately 30,000 mm 2 , approximately 32,500 mm 2 , approximately 35,000 mm 2 , approximately 37,500 mm 2 , approximately 40,000 mm 2 , approximately 42,500 mm 2 , approximately 45,000 mm 2 , approximately 47,500 mm 2 , or approximately 50,000 mm 2 may have an area of

[0153] The window area must be at least approximately 900 mm 2 , at least about 1200 mm 2 , at least about 1600mm 2 , at least about 2000 mm 2 , at least about 2500 mm 2 , at least about 3000 mm 2 , at least about 3600 mm 2 , at least about 4000 mm 2 , at least about 4400mm 2 , at least about 4900mm 2 , at least about 5400mm 2 , at least about 5900mm 2 , at least about 6400 mm2 , at least about 6900mm 2 , at least about 7500 mm 2 , at least about 8100mm 2 , at least about 8700mm 2 , at least about 9300 mm 2 , at least about 10,000 mm 2 , at least about 12,500 mm 2 , at least about 15,000 mm 2 , at least about 17,500 mm 2 , at least about 20,000 mm 2 , at least about 22,500 mm 2 , at least about 25,000 mm 2 , at least about 27,500 mm 2 , at least about 30,000 mm 2 , at least about 32,500 mm 2 , at least about 35,000 mm 2 , at least about 37,500 mm 2 , at least about 40,000 mm 2 , at least about 42,500 mm 2 , at least about 45,000 mm 2 , at least about 47,500 mm 2 , or at least about 50,000 mm 2 may have an area of

[0154] The window is approximately 900 mm 2 Below, approximately 1200mm 2 Below, approximately 1600mm 2 Below, approximately 2000mm 2 Below, approximately 2500mm 2 Below, approximately 3000mm 2 Below, approximately 3600mm 2 Below, approximately 4000mm 2 Below, approximately 4400mm 2 Below, approximately 4900mm 2 Below, approximately 5400mm 2 Below, approximately 5900mm 2 Below, approximately 6400mm 2 Below, approximately 6900mm 2Below, approximately 7500mm 2 Below, approximately 8100mm 2 Below, approximately 8700mm 2 Below, approximately 9300mm 2 Below, approximately 10,000mm 2 Below, approximately 12,500mm 2 Below, approximately 15,000mm 2 Below, approximately 17,500mm 2 Below, approximately 20,000mm 2 Below, approximately 22,500mm 2 Below, approximately 25,000mm 2 Below, approximately 27,500mm 2 Below, approximately 30,000mm 2 Below, approximately 32,500mm 2 Below, approximately 35,000mm 2 Below, approximately 37,500mm 2 Below, approximately 40,000mm 2 Below, approximately 42,500mm 2 Below, approximately 45,000mm 2 Below, approximately 47,500mm 2 Less than or equal to 50,000 mm 2 It may have the following area:

[0155] The perforations may be distributed along a plurality of concentric circles formed around a center point of the skin-contacting layer. In some embodiments, the concentric circles may be evenly spaced from one another and / or the perforations within the same concentric circle may be evenly distributed along the circle. The concentric circles may be evenly spaced from one another.

[0156] The perforations may be distributed along a plurality of concentric polygons around a central point of the adhesive skin contact layer.

[0157] The perforations may be distributed along a plurality of concentric decagons formed around a central point of the adhesive skin contact layer.

[0158] The perforations may be distributed along a plurality of concentric square, pentagonal, hexagonal, heptagonal, octagonal, or nonagonal polygons. The concentric polygons may be evenly spaced from one another and / or the perforations within the same concentric polygon may be evenly distributed along the polygon.

[0159] The perforations may be cut-outs (i.e., elongated perforations) formed in the adhesive skin contact layer. The adhesive skin contact layer may be circular, and the cut-outs may be at least partially circular or arc-shaped. The cut-outs may define at least a plurality of concentric circular regions. The cut-outs may be at least partially elongated in a direction parallel to the outer periphery of the adhesive skin contact layer. The adhesive skin contact layer may include one or more connections extending between the cut-outs and / or the connections of the adhesive skin contact layer interrupted by the cut-outs.

[0160] The plurality of perforations may be evenly or substantially evenly distributed across the adhesive skin contact layer. In some embodiments, the perforations may be unevenly distributed across the adhesive skin contact layer, such that perforations are more concentrated in certain areas of the adhesive skin contact layer than in other areas of the adhesive skin contact layer. The perforations may be concentrated in several areas of the adhesive skin contact layer, defined as perforation clusters. Each cluster may contain the same number of perforations. Each cluster may contain a different number of perforations. Each cluster may be the same or substantially the same size and / or dimensions. Each cluster may be different size and / or dimensions. One or more clusters may each have perforations that are substantially the same shape. The clusters may have one or more shapes selected from a circle, a triangle, a square, a rectangle, a diamond, a pentagon, a hexagon, or an octagon. The perforations may be evenly or substantially evenly distributed within each cluster.

[0161] The adhesive skin contact layer may include an upper surface and a lower surface, which may be flat or at least substantially flat, e.g., with slightly raised or depressed areas in the adhesive skin contact layer surrounding each perforation, such that the adhesive skin contact layer has a uniform, flat profile when viewed from the side.

[0162] At least a portion of the adhesive skin contact layer may be raised or otherwise non-planar, such that when viewed from the side, the adhesive skin contact layer has an uneven or non-planar profile.

[0163] The plurality of perforations may include a plurality of first perforations and a plurality of second perforations.

[0164] The adhesive skin contact layer may include perforations having the same shape but a different orientation, for example, the second plurality of perforations may be the same shape as the first plurality of perforations but have a different orientation, for example rotated 20°, 30°, 45°, 60°, 90°, or 180° from the orientation of the first perforations.

[0165] The first plurality of perforations and the second plurality of perforations may be different shapes. For example, the first plurality of perforations may be circular, while the second plurality of perforations are square. In some embodiments, the first plurality of perforations and the second plurality of perforations may be the same or substantially the same shape. The first plurality of perforations and the second plurality of perforations may be different shapes.

[0166] The first plurality of perforations and the second plurality of perforations may be different sizes. For example, the first plurality of perforations may each have a larger diameter than the second plurality of perforations. In some embodiments, the first plurality of perforations and the second plurality of perforations may each be the same or substantially the same size.

[0167] Each of the plurality of first perforations and each of the plurality of second perforations may have a diameter of about 1.25 mm, about 1.30 mm, about 1.35 mm, about 1.40 mm, about 1.45 mm, about 1.50 mm, about 1.55 mm, about 1.60 mm, about 1.65 mm, about 1.70 mm, about 1.75 mm, about 1.80 mm, about 1.85 mm, about 1.90 mm, about 1.95 mm, about 2.00 mm, about 2.05 mm, about 2.10 mm, about 2.15 mm, about 2.20 mm, about 2.25 mm, about 2.30 mm, about 2.35 mm, about 2.40 mm, about 2.45 mm, about 2.50 mm, about 2.5 ... The diameter may be selected from about 0.60 mm, about 2.65 mm, about 2.70 mm, about 2.75 mm, about 2.80 mm, about 2.85 mm, about 2.90 mm, about 2.95 mm, about 3.00 mm, about 3.10 mm, about 3.20 mm, about 3.30 mm, about 3.40 mm, about 3.50 mm, about 3.60 mm, about 3.70 mm, about 3.80 mm, about 3.90 mm, about 4.00 mm, about 4.10 mm, about 4.20 mm, about 4.40 mm, about 4.40 mm, about 4.50 mm, about 4.60 mm, about 4.70 mm, about 4.80 mm, about 4.90 mm, or about 5.00 mm.

[0168] Each of the plurality of first perforations and each of the plurality of second perforations may have a diameter of at least about 1.25 mm, at least about 1.30 mm, at least about 1.35 mm, at least about 1.40 mm, at least about 1.45 mm, at least about 1.50 mm, at least about 1.55 mm, at least about 1.60 mm, at least about 1.65 mm, at least about 1.70 mm, at least about 1.75 mm, at least about 1.80 mm, at least about 1.85 mm, at least about 1.90 mm, at least about 1.95 mm, at least about 2.00 mm, at least about 2.05 mm, at least about 2.10 mm, at least about 2.15 mm, at least about 2.20 mm, at least about 2.25 mm, at least about 2.30 mm, at least about 2.35 mm, at least about 2.40 mm, at least about 2.45 mm, at least about 2.50 mm, at least about 2.55 mm, at least about 2. In some embodiments, the diameter may be selected from the group consisting of at least about 0.60 mm, at least about 2.65 mm, at least about 2.70 mm, at least about 2.75 mm, at least about 2.80 mm, at least about 2.85 mm, at least about 2.90 mm, at least about 2.95 mm, at least about 3.00 mm, at least about 3.10 mm, at least about 3.20 mm, at least about 3.30 mm, at least about 3.40 mm, at least about 3.50 mm, at least about 3.60 mm, at least about 3.70 mm, at least about 3.80 mm, at least about 3.90 mm, at least about 4.00 mm, at least about 4.10 mm, at least about 4.20 mm, at least about 4.40 mm, at least about 4.40 mm, at least about 4.50 mm, at least about 4.60 mm, at least about 4.70 mm, at least about 4.80 mm, at least about 4.90 mm, or at least about 5.00 mm.

[0169] Each of the plurality of first perforations and each of the plurality of second perforations may have a diameter of about 1.25 mm or less, about 1.30 mm or less, about 1.35 mm or less, about 1.40 mm or less, about 1.45 mm or less, about 1.50 mm or less, about 1.55 mm or less, about 1.60 mm or less, about 1.65 mm or less, about 1.70 mm or less, about 1.75 mm or less, about 1.80 mm or less, about 1.85 mm or less, about 1.90 mm or less, about 1.95 mm or less, about 2.00 mm or less, about 2.05 mm or less, about 2.10 mm or less, about 2.15 mm or less, about 2.20 mm or less, about 2.25 mm or less, about 2.30 mm or less, about 2.35 mm or less, about 2.40 mm or less, about 2.45 mm or less, about 2.50 mm or less, about 2.55 mm or less, about 2.6 The diameter may be selected from about 0 mm or less, about 2.65 mm or less, about 2.70 mm or less, about 2.75 mm or less, about 2.80 mm or less, about 2.85 mm or less, about 2.90 mm or less, about 2.95 mm or less, about 3.00 mm or less, about 3.10 mm or less, about 3.20 mm or less, about 3.30 mm or less, about 3.40 mm or less, about 3.50 mm or less, about 3.60 mm or less, about 3.70 mm or less, about 3.80 mm or less, about 3.90 mm or less, about 4.00 mm or less, about 4.10 mm or less, about 4.20 mm or less, about 4.40 mm or less, about 4.40 mm or less, about 4.50 mm or less, about 4.60 mm or less, about 4.70 mm or less, about 4.80 mm or less, about 4.90 mm or less, or about 5.00 mm or less.

[0170] The first plurality of perforations may be located at a border of the adhesive skin contact layer. The second plurality of perforations may be located at a center of the adhesive skin contact layer. The center may be surrounded by the border. Each of the first plurality of perforations may have a larger diameter than each of the second plurality of perforations.

[0171] In some embodiments, the plurality of first perforations and the plurality of second perforations may be distributed in different configurations, for example, the plurality of first perforations may be distributed in a plurality of rows with the first perforations in adjacent rows being staggered, such as the plurality of first perforations being distributed in a triangular packed layout while the plurality of second perforations are distributed around each of the first perforations.

[0172] Of course, the invention according to the first aspect may separately include any one or more features of the invention according to any other aspect.

[0173] According to a second aspect of the present invention, there is provided a method of forming a plurality of perforations in an adhesive skin contact layer of a negative pressure wound dressing, the method comprising: a. providing an adhesive skin contact layer; and b. Creating a plurality of perforations in the adhesive skin contact layer by mechanical punch perforation.

[0174] The adhesive skin contact layer may have a weight between 40 gsm and 250 gsm.

[0175] The adhesive skin contact layer may be a perforated mesh, which may include perforations each having a diameter between 1.25 mm and 1.50 mm.

[0176] Of course, the invention according to the second aspect may individually include any one or more of the optional or other features of the invention according to any of the other aspects, for example the adhesive skin contact layer may be the adhesive skin contact layer defined in the first aspect, optionally including any optional feature described above, and the wound dressing may be the wound dressing of the first aspect, optionally including any optional feature described above.

[0177] According to another broad aspect of the present invention, there is provided a wound dressing including a wound contact layer. The wound contact layer may be positioned to contact the wound when the wound dressing is adhered to skin adjacent the wound. The wound contact layer may have a first surface and a second surface. The first surface of the wound contact layer may contact the wound in use. The first surface of the wound contact layer may include warp stitches. The second surface of the wound contact layer may include warp stitches. The wound dressing may be a negative pressure wound dressing. The dressing may include a backing layer. The dressing may include an adhesive skin contact layer. The dressing may include an absorbent structure. The absorbent structure may be disposed between the backing layer and the adhesive skin contact layer. The backing layer may include a connecting piece configured to connect the dressing to a negative pressure source. The second surface may include warp stitches and weft stitches. The first surface may not comprise any weft stitches.

[0178] In a third aspect of the present invention, there is provided a negative pressure wound dressing comprising a backing layer, an adhesive skin contact layer, and an absorbent structure disposed between the backing layer and the adhesive skin contact layer, wherein the adhesive skin contact layer is configured to removably adhere the dressing to a skin surface, the backing layer comprises a connecting piece configured to connect the dressing to a negative pressure source, the absorbent structure comprises a wound contact layer disposed to contact the wound when the adhesive skin contact layer is adhered to skin adjacent the wound, the wound contact layer having a first surface and a second surface, the first surface of the wound contact layer contacts the wound in use, and the first surface and the second surface comprise warp stitches.

[0179] The warp stitches may comprise any non-gelling fiber.

[0180] Thus, the present invention provides a wound contact layer that has a reduced amount of non-gelling material (e.g., non-gelling fibres) at the wound contact surface. Advantageously, this facilitates the absorption of wound exudate, thereby preventing the accumulation of exudate at the wound site. Thus, an environment optimised for wound healing is maintained at the wound site.

[0181] Further advantageously, the present invention provides a wound dressing that has greater adhesion between the wound contact layer and other layers of the absorbent structure that may be present, such as a transfer layer located between the wound contact layer and the absorbent or backing layer. Thus, the present invention provides a wound dressing that exhibits sufficient strength to hold the layers of the wound dressing together even if the dressing becomes wetted with exudate or the like or when the dressing is handled, without compromising its absorbent efficacy.

[0182] Thus, advantageously, the wound contact layer of the present invention prevents or at least substantially reduces the accumulation of wound exudate at the wound site, maintains an environment at the wound site that is optimized for wound healing, and exhibits sufficient strength between the layers of the absorbent structure to prevent or at least substantially reduce the likelihood of the layers of the absorbent structure separating.

[0183] The second surface may include warp stitches and weft stitches.

[0184] Thus, in one embodiment, there is provided a negative pressure wound dressing comprising a backing layer, an adhesive skin contact layer, and an absorbent structure disposed between the backing layer and the adhesive skin contact layer, wherein the adhesive skin contact layer is configured to removably adhere the dressing to a skin surface, the backing layer includes a connecting component configured to connect the dressing to a negative pressure source, the absorbent structure includes a wound contact layer disposed to contact the wound when the adhesive skin contact layer is adhered to the skin adjacent the wound, the wound contact layer having a first surface and a second surface, the first surface of the wound contact layer contacts the wound in use, the first surface includes warp stitches, and the second surface includes warp stitches and weft stitches.

[0185] The absorbent structure may be disposed between the backing layer and the adhesive skin-contacting layer.

[0186] The first surface is less than 15.0 stitches / cm, less than 14.5 stitches / cm, less than 14.0 stitches / cm, less than 13.5 stitches / cm, less than 13.0 stitches / cm, less than 12.5 stitches / cm, less than 12.0 stitches / cm, less than 11.5 stitches / cm, less than 11.0 stitches / cm, less than 10.5 stitches / cm, less than 10.0 stitches / cm, less than 9.5 stitches / cm, less than 9.0 stitches / cm, less than 8.5 stitches / cm, less than 8.0 stitches / cm, less than 7.5 stitches / cm, less than 7.0 stitches / cm, less than 6.5 stitches / cm , less than 6.0 stitches / cm, less than 5.5 stitches / cm, less than 5.0 stitches / cm, less than 4.5 stitches / cm, less than 4.0 stitches / cm, less than 3.5 stitches / cm, less than 3.0 stitches / cm, less than 2.5 stitches / cm, less than 2.0 stitches / cm, less than 1.5 stitches / cm, less than 1.0 stitches / cm, less than 0.8 stitches / cm, less than 0.6 stitches / cm, less than 0.5 stitches / cm, less than 0.4 stitches / cm, less than 0.3 stitches / cm, less than 0.2 stitches / cm, or less than 0.1 stitches / cm.

[0187] The first surface has approximately 15.0 stitches / cm, approximately 14.5 stitches / cm, approximately 14.0 stitches / cm, approximately 13.5 stitches / cm, approximately 13.0 stitches / cm, approximately 12.5 stitches / cm, approximately 12.0 stitches / cm, approximately 11.5 stitches / cm, approximately 11.0 stitches / cm, approximately 10.5 stitches / cm, approximately 10.0 stitches / cm, approximately 9.5 stitches / cm, approximately 9.0 stitches / cm, approximately 8.5 stitches / cm, approximately 8.0 stitches / cm, approximately 7.5 stitches / cm, approximately 7.0 stitches / cm, and approximately 6.5 stitches / cm , about 6.0 stitches / cm, about 5.5 stitches / cm, about 5.0 stitches / cm, about 4.5 stitches / cm, about 4.0 stitches / cm, about 3.5 stitches / cm, about 3.0 stitches / cm, about 2.5 stitches / cm, about 2.0 stitches / cm, about 1.5 stitches / cm, about 1.0 stitches / cm, about 0.8 stitches / cm, about 0.6 stitches / cm, about 0.5 stitches / cm, about 0.4 stitches / cm, about 0.3 stitches / cm, about 0.2 stitches / cm, or about 0.1 stitches / cm.

[0188] First surface: 15.0 stitches / cm or less, 14.5 stitches / cm or less, 14.0 stitches / cm or less, 13.5 stitches / cm or less, 13.0 stitches / cm or less, 12.5 stitches / cm or less, 12.0 stitches / cm or less, 11.5 stitches / cm or less, 11.0 stitches / cm or less, 10.5 stitches / cm or less, 10.0 stitches / cm or less, 9.5 stitches / cm or less, 9.0 stitches / cm or less, 8.5 stitches / cm or less, 8.0 stitches / cm or less, 7.5 stitches / cm or less, 7.0 stitches / cm or less, 6.5 stitches / cm or less , 6.0 stitches / cm or less, 5.5 stitches / cm or less, 5.0 stitches / cm or less, 4.5 stitches / cm or less, 4.0 stitches / cm or less, 3.5 stitches / cm or less, 3.0 stitches / cm or less, 2.5 stitches / cm or less, 2.0 stitches / cm or less, 1.5 stitches / cm or less, 1.0 stitches / cm or less, 0.8 stitches / cm or less, 0.6 stitches / cm or less, 0.5 stitches / cm or less, 0.4 stitches / cm or less, 0.3 stitches / cm or less, 0.2 stitches / cm or less, or 0.1 stitches / cm or less.

[0189] The first surface has at least 15.0 stitches / cm, at least 14.5 stitches / cm, at least 14.0 stitches / cm, at least 13.5 stitches / cm, at least 13.0 stitches / cm, at least 12.5 stitches / cm, at least 12.0 stitches / cm, at least 11.5 stitches / cm, at least 11.0 stitches / cm, at least 10.5 stitches / cm, at least 10.0 stitches / cm, at least 9.5 stitches / cm, at least 9.0 stitches / cm, at least 8.5 stitches / cm, at least 8.0 stitches / cm, at least 7.5 stitches / cm, at least 7.0 stitches / cm, at least 6.5 stitches / cm , at least 6.0 stitches / cm, at least 5.5 stitches / cm, at least 5.0 stitches / cm, at least 4.5 stitches / cm, at least 4.0 stitches / cm, at least 3.5 stitches / cm, at least 3.0 stitches / cm, at least 2.5 stitches / cm, at least 2.0 stitches / cm, at least 1.5 stitches / cm, at least 1.0 stitches / cm, at least 0.8 stitches / cm, at least 0.6 stitches / cm, at least 0.5 stitches / cm, at least 0.4 stitches / cm, at least 0.3 stitches / cm, at least 0.2 stitches / cm, or at least 0.1 stitches / cm.

[0190] The first surface has a stitch length of between about 0.1 and about 15.0 stitches / cm, between about 0.1 and about 14.5 stitches / cm, between about 0.1 and about 14.0 stitches / cm, between about 0.1 and about 13.5 stitches / cm, between about 0.1 and about 13.0 stitches / cm, between about 0.1 and about 12.5 stitches / cm, between about 0.1 and about 12.0 stitches / cm, and between about 0.1 and about 11.5 stitches / cm. , between about 0.1 and about 11.0 stitches / cm, between about 0.1 and about 10.5 stitches / cm, between about 0.1 and about 10.0 stitches / cm, between about 0.1 and about 9.5 stitches / cm, between about 0.1 and about 9.0 stitches / cm, between about 0.1 and about 8.5 stitches / cm, between about 0.1 and about 8.0 stitches / cm, between about 0.1 and about 7.5 stitches / cm, between about 0.1 and about 7.0 stitches / cm, between about 0.1 and about 6.5 stitches / cm, between about 0.1 and about 6.0 stitches / cm, between about 0.1 and about 5.5 stitches / cm, between about 0.1 and about 5.0 stitches / cm, between about 0.1 and about 4.5 stitches / cm, between about 0.1 and about 4.0 stitches / cm, between about 0.1 and about 3.5 stitches / cm, between about 0.1 and about 3.0 stitches / cm, between about 0.1 and about 2.5 stitches / cm, between about 0.1 and about 2.0 stitches / cm, between about 0.1 and about 1.5 stitches / cm, between about 0.1 and about 1.0 stitches / cm, between about 0.1 and about 0.8 stitches / cm, between about 0.1 and about 0.6 stitches / cm, between about 0.1 and about 0.4 stitches / cm, or between about 0.1 and about 0.2 stitches / cm.

[0191] The first surface has a stitch count of between about 0.2 and about 15.0 stitches / cm, between about 0.2 and about 14.5 stitches / cm, between about 0.2 and about 14.0 stitches / cm, between about 0.2 and about 13.5 stitches / cm, between about 0.2 and about 13.0 stitches / cm, between about 0.2 and about 12.5 stitches / cm, between about 0.2 and about 12.0 stitches / cm, between about 0.2 and about 11.5 stitches / cm, between about 0.2 and about 11.0 stitches / cm, between about 0.2 and about 10.5 stitches / cm, between about 0.2 and about 10.0 stitches / cm, between about 0.2 and about 9.5 stitches / cm, between about 0.2 and about 9.0 stitches / cm, between about 0.2 and about 8.5 stitches / cm, between about 0.2 and about 8.0 stitches / cm, and between about 0.2 and about 7.5 stitches / cm. , between about 0.2 and about 7.0 stitches / cm, between about 0.2 and about 6.5 stitches / cm, between about 0.2 and about 6.0 stitches / cm, between about 0.2 and about 5.5 stitches / cm, between about 0.2 and about 5.0 stitches / cm, between about 0.2 and about 4.5 stitches / cm, between about 0.2 and about 4.0 stitches / cm, between about 0.2 and about 3.5 stitches / cm, between about 0.2 and about 3.0 stitches / cm, between about 0.2 and about 2.5 stitches / cm, between about 0.2 and about 2.0 stitches / cm, between about 0.2 and about 1.5 stitches / cm, between about 0.2 and about 1.0 stitches / cm, between about 0.2 and about 0.8 stitches / cm, between about 0.2 and about 0.6 stitches / cm, or between about 0.2 and about 0.4 stitches / cm.

[0192] The first surface may have a stitch length of between about 0.4 and about 15.0 stitches / cm, between about 0.4 and about 14.5 stitches / cm, between about 0.4 and about 14.0 stitches / cm, between about 0.4 and about 13.5 stitches / cm, between about 0.4 and about 13.0 stitches / cm, between about 0.4 and about 12.5 stitches / cm, between about 0.4 and about 12.0 stitches / cm, between about 0.4 and about 11.5 stitches / cm, between about 0.4 and about 11.0 stitches / cm, between about 0.4 and about 10.5 stitches / cm, between about 0.4 and about 10.0 stitches / cm, between about 0.4 and about 9.5 stitches / cm, between about 0.4 and about 9.0 stitches / cm, between about 0.4 and about 8.5 stitches / cm, between about 0.4 and about 8.0 stitches / cm, between about 0.4 and about 7.5 The weft stitch may be between about 0.4 and about 7.0 stitches / cm, between about 0.4 and about 6.5 stitches / cm, between about 0.4 and about 6.0 stitches / cm, between about 0.4 and about 5.5 stitches / cm, between about 0.4 and about 5.0 stitches / cm, between about 0.4 and about 4.5 stitches / cm, between about 0.4 and about 4.0 stitches / cm, between about 0.4 and about 3.5 stitches / cm, between about 0.4 and about 3.0 stitches / cm, between about 0.4 and about 2.5 stitches / cm, between about 0.4 and about 2.0 stitches / cm, between about 0.4 and about 1.5 stitches / cm, between about 0.4 and about 1.0 stitches / cm, between about 0.4 and about 0.8 stitches / cm, or between about 0.4 and about 0.6 stitches / cm.

[0193] The first surface has a stitch count of between about 0.6 and about 15.0 stitches / cm, between about 0.6 and about 14.5 stitches / cm, between about 0.6 and about 14.0 stitches / cm, between about 0.6 and about 13.5 stitches / cm, between about 0.6 and about 13.0 stitches / cm, between about 0.6 and about 12.5 stitches / cm, between about 0.6 and about 12.0 stitches / cm, between about 0.6 and about 11.5 stitches / cm, between about 0.6 and about 11.0 stitches / cm, between about 0.6 and about 10.5 stitches / cm, between about 0.6 and about 10.0 stitches / cm, between about 0.6 and about 9.5 stitches / cm, between about 0.6 and about 9.0 stitches / cm, between about 0.6 and about 8.5 stitches / cm, and between about 0.6 and about 8.0 stitches / cm. , between about 0.6 and about 7.5 stitches / cm, between about 0.6 and about 7.0 stitches / cm, between about 0.6 and about 6.5 stitches / cm, between about 0.6 and about 6.0 stitches / cm, between about 0.6 and about 5.5 stitches / cm, between about 0.6 and about 5.0 stitches / cm, between about 0.6 and about 4.5 stitches / cm, between about 0.6 and about 4.0 stitches / cm, between about 0.6 and about 3.5 stitches / cm, between about 0.6 and about 3.0 stitches / cm, between about 0.6 and about 2.5 stitches / cm, between about 0.6 and about 2.0 stitches / cm, between about 0.6 and about 1.5 stitches / cm, between about 0.6 and about 1.0 stitches / cm, or between about 0.6 and about 0.8 stitches / cm.

[0194] The first surface has a stitch count of between about 0.8 and about 15.0 stitches / cm, between about 0.8 and about 14.5 stitches / cm, between about 0.8 and about 14.0 stitches / cm, between about 0.8 and about 13.5 stitches / cm, between about 0.8 and about 13.0 stitches / cm, between about 0.8 and about 12.5 stitches / cm, between about 0.8 and about 12.0 stitches / cm, between about 0.8 and about 11.5 stitches / cm, between about 0.8 and about 11.0 stitches / cm, between about 0.8 and about 10.5 stitches / cm, between about 0.8 and about 10.0 stitches / cm, between about 0.8 and about 9.5 stitches / cm, between about 0.8 and about 9.0 stitches / cm, between about 0.8 and about 8.5 stitches / cm, between about 0.8 and about 8.0 The weft stitch may be between about 0.8 and about 7.5 stitches / cm, between about 0.8 and about 7.0 stitches / cm, between about 0.8 and about 6.5 stitches / cm, between about 0.8 and about 6.0 stitches / cm, between about 0.8 and about 5.5 stitches / cm, between about 0.8 and about 5.0 stitches / cm, between about 0.8 and about 4.5 stitches / cm, between about 0.8 and about 4.0 stitches / cm, between about 0.8 and about 3.5 stitches / cm, between about 0.8 and about 3.0 stitches / cm, between about 0.8 and about 2.5 stitches / cm, between about 0.8 and about 2.0 stitches / cm, between about 0.8 and about 1.5 stitches / cm, or between about 0.8 and about 1.0 stitch / cm.

[0195] The first surface has a stitch length of between about 1.0 and about 15.0 stitches / cm, between about 1.0 and about 14.5 stitches / cm, between about 1.0 and about 14.0 stitches / cm, between about 1.0 and about 13.5 stitches / cm, between about 1.0 and about 13.0 stitches / cm, between about 1.0 and about 12.5 stitches / cm, between about 1.0 and about 12.0 stitches / cm, between about 1.0 and about 11.5 stitches / cm, between about 1.0 and about 11.0 stitches / cm, between about 1.0 and about 10.5 stitches / cm, between about 1.0 and about 10.0 stitches / cm, between about 1.0 and about 9.5 stitches / cm, between about 1.0 and about 9.0 stitches / cm, and between about 1.0 and about 8.5 stitches / cm. , between about 1.0 and about 8.0 stitches / cm, between about 1.0 and about 7.5 stitches / cm, between about 1.0 and about 7.0 stitches / cm, between about 1.0 and about 6.5 stitches / cm, between about 1.0 and about 6.0 stitches / cm, between about 1.0 and about 5.5 stitches / cm, between about 1.0 and about 5.0 stitches / cm, between about 1.0 and about 4.5 stitches / cm, between about 1.0 and about 4.0 stitches / cm, between about 1.0 and about 3.5 stitches / cm, between about 1.0 and about 3.0 stitches / cm, between about 1.0 and about 2.5 stitches / cm, between about 1.0 and about 2.0 stitches / cm, or between about 1.0 and about 1.5 stitches / cm.

[0196] The first surface has a stitch length of between about 1.5 and about 15.0 stitches / cm, between about 1.5 and about 14.5 stitches / cm, between about 1.5 and about 14.0 stitches / cm, between about 1.5 and about 13.5 stitches / cm, between about 1.5 and about 13.0 stitches / cm, between about 1.5 and about 12.5 stitches / cm, between about 1.5 and about 12.0 stitches / cm, between about 1.5 and about 11.5 stitches / cm, between about 1.5 and about 11.0 stitches / cm, between about 1.5 and about 10.5 stitches / cm, between about 1.5 and about 10.0 stitches / cm, between about 1.5 and about 9.5 stitches / cm, between about 1.5 and about 9.0 stitches / cm, between about 1.5 and about 8.5 The weft stitches may be between about 1.5 and about 8.0 stitches / cm, between about 1.5 and about 7.5 stitches / cm, between about 1.5 and about 7.0 stitches / cm, between about 1.5 and about 6.5 stitches / cm, between about 1.5 and about 6.0 stitches / cm, between about 1.5 and about 5.5 stitches / cm, between about 1.5 and about 5.0 stitches / cm, between about 1.5 and about 4.5 stitches / cm, between about 1.5 and about 4.0 stitches / cm, between about 1.5 and about 3.5 stitches / cm, between about 1.5 and about 3.0 stitches / cm, between about 1.5 and about 2.5 stitches / cm, or between about 1.5 and about 2.0 stitches / cm.

[0197] The first surface has a stitch count of between about 2.0 and about 15.0 stitches / cm, between about 2.0 and about 14.5 stitches / cm, between about 2.0 and about 14.0 stitches / cm, between about 2.0 and about 13.5 stitches / cm, between about 2.0 and about 13.0 stitches / cm, between about 2.0 and about 12.5 stitches / cm, between about 2.0 and about 12.0 stitches / cm, between about 2.0 and about 11.5 stitches / cm, between about 2.0 and about 11.0 stitches / cm, between about 2.0 and about 10.5 stitches / cm, between about 2.0 and about 10.0 stitches / cm, between about 2.0 and about 9.5 stitches / cm, and between about 2.0 and about 9.0 stitches / cm. , between about 2.0 and about 8.5 stitches / cm, between about 2.0 and about 8.0 stitches / cm, between about 2.0 and about 7.5 stitches / cm, between about 2.0 and about 7.0 stitches / cm, between about 2.0 and about 6.5 stitches / cm, between about 2.0 and about 6.0 stitches / cm, between about 2.0 and about 5.5 stitches / cm, between about 2.0 and about 5.0 stitches / cm, between about 2.0 and about 4.5 stitches / cm, between about 2.0 and about 4.0 stitches / cm, between about 2.0 and about 3.5 stitches / cm, between about 2.0 and about 3.0 stitches / cm, or between about 2.0 and about 2.5 stitches / cm.

[0198] The first surface has a stitch count of between about 2.5 and about 15.0 stitches / cm, between about 2.5 and about 14.5 stitches / cm, between about 2.5 and about 14.0 stitches / cm, between about 2.5 and about 13.5 stitches / cm, between about 2.5 and about 13.0 stitches / cm, between about 2.5 and about 12.5 stitches / cm, between about 2.5 and about 12.0 stitches / cm, between about 2.5 and about 11.5 stitches / cm, between about 2.5 and about 11.0 stitches / cm, between about 2.5 and about 10.5 stitches / cm, between about 2.5 and about 10.0 stitches / cm, between about 2.5 and about 9.5 stitches / cm, between about 2.5 and about 9.0 The weft stitches may be between about 2.5 and about 8.5 stitches / cm, between about 2.5 and about 8.0 stitches / cm, between about 2.5 and about 7.5 stitches / cm, between about 2.5 and about 7.0 stitches / cm, between about 2.5 and about 6.5 stitches / cm, between about 2.5 and about 6.0 stitches / cm, between about 2.5 and about 5.5 stitches / cm, between about 2.5 and about 5.0 stitches / cm, between about 2.5 and about 4.5 stitches / cm, between about 2.5 and about 4.0 stitches / cm, between about 2.5 and about 3.5 stitches / cm, or between about 2.5 and about 3.0 stitches / cm.

[0199] The first surface has a stitch count of between about 3.0 and about 15.0 stitches / cm, between about 3.0 and about 14.5 stitches / cm, between about 3.0 and about 14.0 stitches / cm, between about 3.0 and about 13.5 stitches / cm, between about 3.0 and about 13.0 stitches / cm, between about 3.0 and about 12.5 stitches / cm, between about 3.0 and about 12.0 stitches / cm, between about 3.0 and about 11.5 stitches / cm, between about 3.0 and about 11.0 stitches / cm, between about 3.0 and about 10.5 stitches / cm, between about 3.0 and about 10.0 stitches / cm, and between about 3.0 and about 9.5 stitches / cm. , between about 3.0 and about 9.0 stitches / cm, between about 3.0 and about 8.5 stitches / cm, between about 3.0 and about 8.0 stitches / cm, between about 3.0 and about 7.5 stitches / cm, between about 3.0 and about 7.0 stitches / cm, between about 3.0 and about 6.5 stitches / cm, between about 3.0 and about 6.0 stitches / cm, between about 3.0 and about 5.5 stitches / cm, between about 3.0 and about 5.0 stitches / cm, between about 3.0 and about 4.5 stitches / cm, between about 3.0 and about 4.0 stitches / cm, or between about 3.0 and about 3.5 stitches / cm.

[0200] The first surface has a stitch length of between about 3.5 and about 15.0 stitches / cm, between about 3.5 and about 14.5 stitches / cm, between about 3.5 and about 14.0 stitches / cm, between about 3.5 and about 13.5 stitches / cm, between about 3.5 and about 13.0 stitches / cm, between about 3.5 and about 12.5 stitches / cm, between about 3.5 and about 12.0 stitches / cm, between about 3.5 and about 11.5 stitches / cm, between about 3.5 and about 11.0 stitches / cm, between about 3.5 and about 10.5 stitches / cm, between about 3.5 and about 10.0 stitches / cm, between about 3.5 and about 9.5 The weft stitches may be between about 3.5 and about 9.0 stitches / cm, between about 3.5 and about 8.5 stitches / cm, between about 3.5 and about 8.0 stitches / cm, between about 3.5 and about 7.5 stitches / cm, between about 3.5 and about 7.0 stitches / cm, between about 3.5 and about 6.5 stitches / cm, between about 3.5 and about 6.0 stitches / cm, between about 3.5 and about 5.5 stitches / cm, between about 3.5 and about 5.0 stitches / cm, between about 3.5 and about 4.5 stitches / cm, or between about 3.5 and about 4.0 stitches / cm.

[0201] The first surface has a stitch count of between about 4.0 and about 15.0 stitches / cm, between about 4.0 and about 14.5 stitches / cm, between about 4.0 and about 14.0 stitches / cm, between about 4.0 and about 13.5 stitches / cm, between about 4.0 and about 13.0 stitches / cm, between about 4.0 and about 12.5 stitches / cm, between about 4.0 and about 12.0 stitches / cm, between about 4.0 and about 11.5 stitches / cm, between about 4.0 and about 11.0 stitches / cm, between about 4.0 and about 10.5 stitches / cm, and between about 4.0 and about 10.0 stitches / cm. , between about 4.0 and about 9.5 stitches / cm, between about 4.0 and about 9.0 stitches / cm, between about 4.0 and about 8.5 stitches / cm, between about 4.0 and about 8.0 stitches / cm, between about 4.0 and about 7.5 stitches / cm, between about 4.0 and about 7.0 stitches / cm, between about 4.0 and about 6.5 stitches / cm, between about 4.0 and about 6.0 stitches / cm, between about 4.0 and about 5.5 stitches / cm, between about 4.0 and about 5.0 stitches / cm, or between about 4.0 and about 4.5 stitches / cm.

[0202] The first surface has a stitch count of between about 4.5 and about 15.0 stitches / cm, between about 4.5 and about 14.5 stitches / cm, between about 4.5 and about 14.0 stitches / cm, between about 4.5 and about 13.5 stitches / cm, between about 4.5 and about 13.0 stitches / cm, between about 4.5 and about 12.5 stitches / cm, between about 4.5 and about 12.0 stitches / cm, between about 4.5 and about 11.5 stitches / cm, between about 4.5 and about 11.0 stitches / cm, between about 4.5 and about 10.5 stitches / cm, between about 4.5 and about 10.0 The weft stitches may be between about 4.5 and about 9.5 stitches / cm, between about 4.5 and about 9.0 stitches / cm, between about 4.5 and about 8.5 stitches / cm, between about 4.5 and about 8.0 stitches / cm, between about 4.5 and about 7.5 stitches / cm, between about 4.5 and about 7.0 stitches / cm, between about 4.5 and about 6.5 stitches / cm, between about 4.5 and about 6.0 stitches / cm, between about 4.5 and about 5.5 stitches / cm, or between about 4.5 and about 5.0 stitches / cm.

[0203] The first surface has a stitch count of between about 5.0 and about 15.0 stitches / cm, between about 5.0 and about 14.5 stitches / cm, between about 5.0 and about 14.0 stitches / cm, between about 5.0 and about 13.5 stitches / cm, between about 5.0 and about 13.0 stitches / cm, between about 5.0 and about 12.5 stitches / cm, between about 5.0 and about 12.0 stitches / cm, between about 5.0 and about 11.5 stitches / cm, between about 5.0 and about 11.0 stitches / cm, between about 5.0 and about 10.5 stitches / cm, The weft stitches may be between about 5.0 and about 10.0 stitches / cm, between about 5.0 and about 9.5 stitches / cm, between about 5.0 and about 9.0 stitches / cm, between about 5.0 and about 8.5 stitches / cm, between about 5.0 and about 8.0 stitches / cm, between about 5.0 and about 7.5 stitches / cm, between about 5.0 and about 7.0 stitches / cm, between about 5.0 and about 6.5 stitches / cm, between about 5.0 and about 6.0 stitches / cm, or between about 5.0 and about 5.5 stitches / cm.

[0204] The first surface may have a stitch length of between about 5.5 and about 15.0 stitches / cm, between about 5.5 and about 14.5 stitches / cm, between about 5.5 and about 14.0 stitches / cm, between about 5.5 and about 13.5 stitches / cm, between about 5.5 and about 13.0 stitches / cm, between about 5.5 and about 12.5 stitches / cm, between about 5.5 and about 12.0 stitches / cm, between about 5.5 and about 11.5 stitches / cm, between about 5.5 and about 11.0 stitches / cm, between about 5.5 and about 10.5 stitches / cm. The weft stitches may be between about 5.5 and about 10.0 stitches / cm, between about 5.5 and about 9.5 stitches / cm, between about 5.5 and about 9.0 stitches / cm, between about 5.5 and about 8.5 stitches / cm, between about 5.5 and about 8.0 stitches / cm, between about 5.5 and about 7.5 stitches / cm, between about 5.5 and about 7.0 stitches / cm, between about 5.5 and about 6.5 stitches / cm, or between about 5.5 and about 6.0 stitches / cm.

[0205] The first surface has a stitch density of between about 6.0 and about 15.0 stitches / cm, between about 6.0 and about 14.5 stitches / cm, between about 6.0 and about 14.0 stitches / cm, between about 6.0 and about 13.5 stitches / cm, between about 6.0 and about 13.0 stitches / cm, between about 6.0 and about 12.5 stitches / cm, between about 6.0 and about 12.0 stitches / cm, between about 6.0 and about 11.5 stitches / cm, between about 6.0 and about 11.0 stitches / cm, The weft stitches may be between 6.0 and about 10.5 stitches / cm, between about 6.0 and about 10.0 stitches / cm, between about 6.0 and about 9.5 stitches / cm, between about 6.0 and about 9.0 stitches / cm, between about 6.0 and about 8.5 stitches / cm, between about 6.0 and about 8.0 stitches / cm, between about 6.0 and about 7.5 stitches / cm, between about 6.0 and about 7.0 stitches / cm, or between about 6.0 and about 6.5 stitches / cm.

[0206] The first surface may have a stitch length of between about 6.5 and about 15.0 stitches / cm, between about 6.5 and about 14.5 stitches / cm, between about 6.5 and about 14.0 stitches / cm, between about 6.5 and about 13.5 stitches / cm, between about 6.5 and about 13.0 stitches / cm, between about 6.5 and about 12.5 stitches / cm, between about 6.5 and about 12.0 stitches / cm, between about 6.5 and about 11.5 stitches / cm, between about 6.5 and about 11.0 stitches / cm. The weft stitches may be between about 6.5 and about 10.5 stitches / cm, between about 6.5 and about 10.0 stitches / cm, between about 6.5 and about 9.5 stitches / cm, between about 6.5 and about 9.0 stitches / cm, between about 6.5 and about 8.5 stitches / cm, between about 6.5 and about 8.0 stitches / cm, between about 6.5 and about 7.5 stitches / cm, or between about 6.5 and about 7.0 stitches / cm.

[0207] The first surface may comprise a weft stitching of between about 7.0 and about 15.0 stitches / cm, between about 7.0 and about 14.5 stitches / cm, between about 7.0 and about 14.0 stitches / cm, between about 7.0 and about 13.5 stitches / cm, between about 7.0 and about 13.0 stitches / cm, between about 7.0 and about 12.5 stitches / cm, between about 7.0 and about 12.0 stitches / cm, between about 7.0 and about 11.5 stitches / cm, between about 7.0 and about 11.0 stitches / cm, between about 7.0 and about 10.5 stitches / cm, between about 7.0 and about 10.0 stitches / cm, between about 7.0 and about 9.5 stitches / cm, between about 7.0 and about 9.0 stitches / cm, between about 7.0 and about 8.5 stitches / cm, between about 7.0 and about 8.0 stitches / cm, or between about 7.0 and about 7.5 stitches / cm.

[0208] The first surface may comprise weft stitches between about 7.5 and about 15.0 stitches / cm, between about 7.5 and about 14.5 stitches / cm, between about 7.5 and about 14.0 stitches / cm, between about 7.5 and about 13.5 stitches / cm, between about 7.5 and about 13.0 stitches / cm, between about 7.5 and about 12.5 stitches / cm, between about 7.5 and about 12.0 stitches / cm, between about 7.5 and about 11.5 stitches / cm, between about 7.5 and about 11.0 stitches / cm, between about 7.5 and about 10.5 stitches / cm, between about 7.5 and about 10.0 stitches / cm, between about 7.5 and about 9.5 stitches / cm, between about 7.5 and about 9.0 stitches / cm, between about 7.5 and about 8.5 stitches / cm, or between about 7.5 and about 8.0 stitches / cm.

[0209] The first surface may comprise a weft stitching of between about 8.0 and about 15.0 stitches / cm, between about 8.0 and about 14.5 stitches / cm, between about 8.0 and about 14.0 stitches / cm, between about 8.0 and about 13.5 stitches / cm, between about 8.0 and about 13.0 stitches / cm, between about 8.0 and about 12.5 stitches / cm, between about 8.0 and about 12.0 stitches / cm, between about 8.0 and about 11.5 stitches / cm, between about 8.0 and about 11.0 stitches / cm, between about 8.0 and about 10.5 stitches / cm, between about 8.0 and about 10.0 stitches / cm, between about 8.0 and about 9.5 stitches / cm, between about 8.0 and about 9.0 stitches / cm, or between about 8.0 and about 8.5 stitches / cm.

[0210] The first surface may comprise weft stitches between about 8.5 and about 15.0 stitches / cm, between about 8.5 and about 14.5 stitches / cm, between about 8.5 and about 14.0 stitches / cm, between about 8.5 and about 13.5 stitches / cm, between about 8.5 and about 13.0 stitches / cm, between about 8.5 and about 12.5 stitches / cm, between about 8.5 and about 12.0 stitches / cm, between about 8.5 and about 11.5 stitches / cm, between about 8.5 and about 11.0 stitches / cm, between about 8.5 and about 10.5 stitches / cm, between about 8.5 and about 10.0 stitches / cm, between about 8.5 and about 9.5 stitches / cm, or between about 8.5 and about 9.0 stitches / cm.

[0211] The first surface may include weft stitches between about 9.0 and about 15.0 stitches / cm, between about 9.0 and about 14.5 stitches / cm, between about 9.0 and about 14.0 stitches / cm, between about 9.0 and about 13.5 stitches / cm, between about 9.0 and about 13.0 stitches / cm, between about 9.0 and about 12.5 stitches / cm, between about 9.0 and about 12.0 stitches / cm, between about 9.0 and about 11.5 stitches / cm, between about 9.0 and about 11.0 stitches / cm, between about 9.0 and about 10.5 stitches / cm, between about 9.0 and about 10.0 stitches / cm, or between about 9.0 and about 9.5 stitches / cm.

[0212] The first surface may include weft stitches between about 9.5 and about 15.0 stitches / cm, between about 9.5 and about 14.5 stitches / cm, between about 9.5 and about 14.0 stitches / cm, between about 9.5 and about 13.5 stitches / cm, between about 9.5 and about 13.0 stitches / cm, between about 9.5 and about 12.5 stitches / cm, between about 9.5 and about 12.0 stitches / cm, between about 9.5 and about 11.5 stitches / cm, between about 9.5 and about 11.0 stitches / cm, between about 9.5 and about 10.5 stitches / cm, or between about 9.5 and about 10.0 stitches / cm.

[0213] The first surface may include weft stitches between about 10.0 and about 15.0 stitches / cm, between about 10.0 and about 14.5 stitches / cm, between about 10.0 and about 14.0 stitches / cm, between about 10.0 and about 13.5 stitches / cm, between about 10.0 and about 13.0 stitches / cm, between about 10.0 and about 12.5 stitches / cm, between about 10.0 and about 12.0 stitches / cm, between about 10.0 and about 11.5 stitches / cm, between about 10.0 and about 11.0 stitches / cm, or between about 10.0 and about 10.5 stitches / cm.

[0214] The first surface may include weft stitches between about 10.5 and about 15.0 stitches / cm, between about 10.5 and about 14.5 stitches / cm, between about 10.5 and about 14.0 stitches / cm, between about 10.5 and about 13.5 stitches / cm, between about 10.5 and about 13.0 stitches / cm, between about 10.5 and about 12.5 stitches / cm, between about 10.5 and about 12.0 stitches / cm, between about 10.5 and about 11.5 stitches / cm, or between about 10.5 and about 11.0 stitches / cm.

[0215] The first surface may include weft stitches between about 11.0 and about 15.0 stitches / cm, between about 11.0 and about 14.5 stitches / cm, between about 11.0 and about 14.0 stitches / cm, between about 11.0 and about 13.5 stitches / cm, between about 11.0 and about 13.0 stitches / cm, between about 11.0 and about 12.5 stitches / cm, between about 11.0 and about 12.0 stitches / cm, or between about 11.0 and about 11.5 stitches / cm.

[0216] The first surface may include weft stitches between about 11.5 and about 15.0 stitches / cm, between about 11.5 and about 14.5 stitches / cm, between about 11.5 and about 14.0 stitches / cm, between about 11.5 and about 13.5 stitches / cm, between about 11.5 and about 13.0 stitches / cm, between about 11.5 and about 12.5 stitches / cm, or between about 11.5 and about 12.0 stitches / cm.

[0217] The first surface may include weft stitches between about 12.0 and about 15.0 stitches / cm, between about 12.0 and about 14.5 stitches / cm, between about 12.0 and about 14.0 stitches / cm, between about 12.0 and about 13.5 stitches / cm, between about 12.0 and about 13.0 stitches / cm, or between about 12.0 and about 12.5 stitches / cm.

[0218] The first surface may include weft stitches between about 12.5 and about 15.0 stitches / cm, between about 12.5 and about 14.5 stitches / cm, between about 12.5 and about 14.0 stitches / cm, between about 12.5 and about 13.5 stitches / cm, or between about 12.5 and about 13.0 stitches / cm.

[0219] The first surface may include weft stitches between about 13.0 and about 15.0 stitches / cm, between about 13.0 and about 14.5 stitches / cm, between about 13.0 and about 14.0 stitches / cm, or between about 13.0 and about 13.5 stitches / cm.

[0220] The first surface may include weft stitches between about 13.5 and about 15.0 stitches / cm, between about 13.5 and about 14.5 stitches / cm, or between about 13.5 and about 14.0 stitches / cm.

[0221] The first surface may include weft stitches between about 14.0 and about 15.0 stitches / cm, or between about 14.0 and about 14.5 stitches / cm.

[0222] The first surface may include between about 14.5 and about 15.0 weft stitches / cm.

[0223] The first surface has a stitch length of between about 0.1 and about 15.0 stitches / cm, between about 0.1 and about 14.5 stitches / cm, between about 0.1 and about 14.0 stitches / cm, between about 0.1 and about 13.5 stitches / cm, between about 0.1 and about 13.0 stitches / cm, between about 0.1 and about 12.5 stitches / cm, between about 0.1 and about 12.0 stitches / cm, and between about 0.1 and about 11.5 stitches / cm. , between about 0.1 and about 11.0 stitches / cm, between about 0.1 and about 10.5 stitches / cm, between about 0.1 and about 10.0 stitches / cm, between about 0.1 and about 9.5 stitches / cm, between about 0.1 and about 9.0 stitches / cm, between about 0.1 and about 8.5 stitches / cm, between about 0.1 and about 8.0 stitches / cm, between about 0.1 and about 7.5 stitches / cm, between about 0.1 and about 7.0 The warp stitches may be between about 0.1 and about 6.5 stitches / cm, between about 0.1 and about 6.0 stitches / cm, between about 0.1 and about 5.5 stitches / cm, between about 0.1 and about 5.0 stitches / cm, between about 0.1 and about 4.5 stitches / cm, between about 0.1 and about 4.0 stitches / cm, between about 0.1 and about 3.5 stitches / cm, between about 0.1 and about 3.0 stitches / cm, between about 0.1 and about 2.5 stitches / cm, between about 0.1 and about 2.0 stitches / cm, between about 0.1 and about 1.5 stitches / cm, between about 0.1 and about 1.0 stitches / cm, between about 0.1 and about 0.8 stitches / cm, between about 0.1 and about 0.6 stitches / cm, between about 0.1 and about 0.4 stitches / cm, or between about 0.1 and about 0.2 stitches / cm.

[0224] The first surface has a stitch count of between about 0.2 and about 15.0 stitches / cm, between about 0.2 and about 14.5 stitches / cm, between about 0.2 and about 14.0 stitches / cm, between about 0.2 and about 13.5 stitches / cm, between about 0.2 and about 13.0 stitches / cm, between about 0.2 and about 12.5 stitches / cm, between about 0.2 and about 12.0 stitches / cm, between about 0.2 and about 11.5 stitches / cm, between about 0.2 and about 11.0 stitches / cm, between about 0.2 and about 10.5 stitches / cm, between about 0.2 and about 10.0 stitches / cm, between about 0.2 and about 9.5 stitches / cm, between about 0.2 and about 9.0 stitches / cm, between about 0.2 and about 8.5 stitches / cm, between about 0.2 and about 8.0 stitches / cm, and between about 0.2 and about 7.5 stitches / cm. , between about 0.2 and about 7.0 stitches / cm, between about 0.2 and about 6.5 stitches / cm, between about 0.2 and about 6.0 stitches / cm, between about 0.2 and about 5.5 stitches / cm, between about 0.2 and about 5.0 stitches / cm, between about 0.2 and about 4.5 stitches / cm, between about 0.2 and about 4.0 stitches / cm, between about 0.2 and about 3.5 stitches / cm, between about 0.2 and about 3.0 stitches / cm, between about 0.2 and about 2.5 stitches / cm, between about 0.2 and about 2.0 stitches / cm, between about 0.2 and about 1.5 stitches / cm, between about 0.2 and about 1.0 stitches / cm, between about 0.2 and about 0.8 stitches / cm, between about 0.2 and about 0.6 stitches / cm, or between about 0.2 and about 0.4 stitches / cm.

[0225] The first surface may have a stitch length of between about 0.4 and about 15.0 stitches / cm, between about 0.4 and about 14.5 stitches / cm, between about 0.4 and about 14.0 stitches / cm, between about 0.4 and about 13.5 stitches / cm, between about 0.4 and about 13.0 stitches / cm, between about 0.4 and about 12.5 stitches / cm, between about 0.4 and about 12.0 stitches / cm, between about 0.4 and about 11.5 stitches / cm, between about 0.4 and about 11.0 stitches / cm, between about 0.4 and about 10.5 stitches / cm, between about 0.4 and about 10.0 stitches / cm, between about 0.4 and about 9.5 stitches / cm, between about 0.4 and about 9.0 stitches / cm, between about 0.4 and about 8.5 stitches / cm, between about 0.4 and about 8.0 stitches / cm, between about 0.4 and about 7.5 The warp stitches may be between about 0.4 and about 7.0 stitches / cm, between about 0.4 and about 6.5 stitches / cm, between about 0.4 and about 6.0 stitches / cm, between about 0.4 and about 5.5 stitches / cm, between about 0.4 and about 5.0 stitches / cm, between about 0.4 and about 4.5 stitches / cm, between about 0.4 and about 4.0 stitches / cm, between about 0.4 and about 3.5 stitches / cm, between about 0.4 and about 3.0 stitches / cm, between about 0.4 and about 2.5 stitches / cm, between about 0.4 and about 2.0 stitches / cm, between about 0.4 and about 1.5 stitches / cm, between about 0.4 and about 1.0 stitches / cm, between about 0.4 and about 0.8 stitches / cm, or between about 0.4 and about 0.6 stitches / cm.

[0226] The first surface has a stitch count of between about 0.6 and about 15.0 stitches / cm, between about 0.6 and about 14.5 stitches / cm, between about 0.6 and about 14.0 stitches / cm, between about 0.6 and about 13.5 stitches / cm, between about 0.6 and about 13.0 stitches / cm, between about 0.6 and about 12.5 stitches / cm, between about 0.6 and about 12.0 stitches / cm, between about 0.6 and about 11.5 stitches / cm, between about 0.6 and about 11.0 stitches / cm, between about 0.6 and about 10.5 stitches / cm, between about 0.6 and about 10.0 stitches / cm, between about 0.6 and about 9.5 stitches / cm, between about 0.6 and about 9.0 stitches / cm, between about 0.6 and about 8.5 stitches / cm, and between about 0.6 and about 8.0 stitches / cm. , between about 0.6 and about 7.5 stitches / cm, between about 0.6 and about 7.0 stitches / cm, between about 0.6 and about 6.5 stitches / cm, between about 0.6 and about 6.0 stitches / cm, between about 0.6 and about 5.5 stitches / cm, between about 0.6 and about 5.0 stitches / cm, between about 0.6 and about 4.5 stitches / cm, between about 0.6 and about 4.0 stitches / cm, between about 0.6 and about 3.5 stitches / cm, between about 0.6 and about 3.0 stitches / cm, between about 0.6 and about 2.5 stitches / cm, between about 0.6 and about 2.0 stitches / cm, between about 0.6 and about 1.5 stitches / cm, between about 0.6 and about 1.0 stitches / cm, or between about 0.6 and about 0.8 stitches / cm.

[0227] The first surface has a stitch count of between about 0.8 and about 15.0 stitches / cm, between about 0.8 and about 14.5 stitches / cm, between about 0.8 and about 14.0 stitches / cm, between about 0.8 and about 13.5 stitches / cm, between about 0.8 and about 13.0 stitches / cm, between about 0.8 and about 12.5 stitches / cm, between about 0.8 and about 12.0 stitches / cm, between about 0.8 and about 11.5 stitches / cm, between about 0.8 and about 11.0 stitches / cm, between about 0.8 and about 10.5 stitches / cm, between about 0.8 and about 10.0 stitches / cm, between about 0.8 and about 9.5 stitches / cm, between about 0.8 and about 9.0 stitches / cm, between about 0.8 and about 8.5 stitches / cm, between about 0.8 and about 8.0 The warp stitches may be between about 0.8 and about 7.5 stitches / cm, between about 0.8 and about 7.0 stitches / cm, between about 0.8 and about 6.5 stitches / cm, between about 0.8 and about 6.0 stitches / cm, between about 0.8 and about 5.5 stitches / cm, between about 0.8 and about 5.0 stitches / cm, between about 0.8 and about 4.5 stitches / cm, between about 0.8 and about 4.0 stitches / cm, between about 0.8 and about 3.5 stitches / cm, between about 0.8 and about 3.0 stitches / cm, between about 0.8 and about 2.5 stitches / cm, between about 0.8 and about 2.0 stitches / cm, between about 0.8 and about 1.5 stitches / cm, or between about 0.8 and about 1.0 stitch / cm.

[0228] The first surface has a stitch length of between about 1.0 and about 15.0 stitches / cm, between about 1.0 and about 14.5 stitches / cm, between about 1.0 and about 14.0 stitches / cm, between about 1.0 and about 13.5 stitches / cm, between about 1.0 and about 13.0 stitches / cm, between about 1.0 and about 12.5 stitches / cm, between about 1.0 and about 12.0 stitches / cm, between about 1.0 and about 11.5 stitches / cm, between about 1.0 and about 11.0 stitches / cm, between about 1.0 and about 10.5 stitches / cm, between about 1.0 and about 10.0 stitches / cm, between about 1.0 and about 9.5 stitches / cm, between about 1.0 and about 9.0 stitches / cm, and between about 1.0 and about 8.5 stitches / cm. , between about 1.0 and about 8.0 stitches / cm, between about 1.0 and about 7.5 stitches / cm, between about 1.0 and about 7.0 stitches / cm, between about 1.0 and about 6.5 stitches / cm, between about 1.0 and about 6.0 stitches / cm, between about 1.0 and about 5.5 stitches / cm, between about 1.0 and about 5.0 stitches / cm, between about 1.0 and about 4.5 stitches / cm, between about 1.0 and about 4.0 stitches / cm, between about 1.0 and about 3.5 stitches / cm, between about 1.0 and about 3.0 stitches / cm, between about 1.0 and about 2.5 stitches / cm, between about 1.0 and about 2.0 stitches / cm, or between about 1.0 and about 1.5 stitches / cm.

[0229] The first surface has a stitch length of between about 1.5 and about 15.0 stitches / cm, between about 1.5 and about 14.5 stitches / cm, between about 1.5 and about 14.0 stitches / cm, between about 1.5 and about 13.5 stitches / cm, between about 1.5 and about 13.0 stitches / cm, between about 1.5 and about 12.5 stitches / cm, between about 1.5 and about 12.0 stitches / cm, between about 1.5 and about 11.5 stitches / cm, between about 1.5 and about 11.0 stitches / cm, between about 1.5 and about 10.5 stitches / cm, between about 1.5 and about 10.0 stitches / cm, between about 1.5 and about 9.5 stitches / cm, between about 1.5 and about 9.0 stitches / cm, between about 1.5 and about 8.5 The warp stitches may be between about 1.5 and about 8.0 stitches / cm, between about 1.5 and about 7.5 stitches / cm, between about 1.5 and about 7.0 stitches / cm, between about 1.5 and about 6.5 stitches / cm, between about 1.5 and about 6.0 stitches / cm, between about 1.5 and about 5.5 stitches / cm, between about 1.5 and about 5.0 stitches / cm, between about 1.5 and about 4.5 stitches / cm, between about 1.5 and about 4.0 stitches / cm, between about 1.5 and about 3.5 stitches / cm, between about 1.5 and about 3.0 stitches / cm, between about 1.5 and about 2.5 stitches / cm, or between about 1.5 and about 2.0 stitches / cm.

[0230] The first surface has a stitch count of between about 2.0 and about 15.0 stitches / cm, between about 2.0 and about 14.5 stitches / cm, between about 2.0 and about 14.0 stitches / cm, between about 2.0 and about 13.5 stitches / cm, between about 2.0 and about 13.0 stitches / cm, between about 2.0 and about 12.5 stitches / cm, between about 2.0 and about 12.0 stitches / cm, between about 2.0 and about 11.5 stitches / cm, between about 2.0 and about 11.0 stitches / cm, between about 2.0 and about 10.5 stitches / cm, between about 2.0 and about 10.0 stitches / cm, between about 2.0 and about 9.5 stitches / cm, and between about 2.0 and about 9.0 stitches / cm. , between about 2.0 and about 8.5 stitches / cm, between about 2.0 and about 8.0 stitches / cm, between about 2.0 and about 7.5 stitches / cm, between about 2.0 and about 7.0 stitches / cm, between about 2.0 and about 6.5 stitches / cm, between about 2.0 and about 6.0 stitches / cm, between about 2.0 and about 5.5 stitches / cm, between about 2.0 and about 5.0 stitches / cm, between about 2.0 and about 4.5 stitches / cm, between about 2.0 and about 4.0 stitches / cm, between about 2.0 and about 3.5 stitches / cm, between about 2.0 and about 3.0 stitches / cm, or between about 2.0 and about 2.5 stitches / cm.

[0231] The first surface has a stitch count of between about 2.5 and about 15.0 stitches / cm, between about 2.5 and about 14.5 stitches / cm, between about 2.5 and about 14.0 stitches / cm, between about 2.5 and about 13.5 stitches / cm, between about 2.5 and about 13.0 stitches / cm, between about 2.5 and about 12.5 stitches / cm, between about 2.5 and about 12.0 stitches / cm, between about 2.5 and about 11.5 stitches / cm, between about 2.5 and about 11.0 stitches / cm, between about 2.5 and about 10.5 stitches / cm, between about 2.5 and about 10.0 stitches / cm, between about 2.5 and about 9.5 stitches / cm, between about 2.5 and about 9.0 The warp stitches may be between about 2.5 and about 8.5 stitches / cm, between about 2.5 and about 8.0 stitches / cm, between about 2.5 and about 7.5 stitches / cm, between about 2.5 and about 7.0 stitches / cm, between about 2.5 and about 6.5 stitches / cm, between about 2.5 and about 6.0 stitches / cm, between about 2.5 and about 5.5 stitches / cm, between about 2.5 and about 5.0 stitches / cm, between about 2.5 and about 4.5 stitches / cm, between about 2.5 and about 4.0 stitches / cm, between about 2.5 and about 3.5 stitches / cm, or between about 2.5 and about 3.0 stitches / cm.

[0232] The first surface has a stitch count of between about 3.0 and about 15.0 stitches / cm, between about 3.0 and about 14.5 stitches / cm, between about 3.0 and about 14.0 stitches / cm, between about 3.0 and about 13.5 stitches / cm, between about 3.0 and about 13.0 stitches / cm, between about 3.0 and about 12.5 stitches / cm, between about 3.0 and about 12.0 stitches / cm, between about 3.0 and about 11.5 stitches / cm, between about 3.0 and about 11.0 stitches / cm, between about 3.0 and about 10.5 stitches / cm, between about 3.0 and about 10.0 stitches / cm, and between about 3.0 and about 9.5 stitches / cm. , between about 3.0 and about 9.0 stitches / cm, between about 3.0 and about 8.5 stitches / cm, between about 3.0 and about 8.0 stitches / cm, between about 3.0 and about 7.5 stitches / cm, between about 3.0 and about 7.0 stitches / cm, between about 3.0 and about 6.5 stitches / cm, between about 3.0 and about 6.0 stitches / cm, between about 3.0 and about 5.5 stitches / cm, between about 3.0 and about 5.0 stitches / cm, between about 3.0 and about 4.5 stitches / cm, between about 3.0 and about 4.0 stitches / cm, or between about 3.0 and about 3.5 stitches / cm.

[0233] The first surface has a stitch length of between about 3.5 and about 15.0 stitches / cm, between about 3.5 and about 14.5 stitches / cm, between about 3.5 and about 14.0 stitches / cm, between about 3.5 and about 13.5 stitches / cm, between about 3.5 and about 13.0 stitches / cm, between about 3.5 and about 12.5 stitches / cm, between about 3.5 and about 12.0 stitches / cm, between about 3.5 and about 11.5 stitches / cm, between about 3.5 and about 11.0 stitches / cm, between about 3.5 and about 10.5 stitches / cm, between about 3.5 and about 10.0 stitches / cm, between about 3.5 and about 9.5 The warp stitches may be between about 3.5 and about 9.0 stitches / cm, between about 3.5 and about 8.5 stitches / cm, between about 3.5 and about 8.0 stitches / cm, between about 3.5 and about 7.5 stitches / cm, between about 3.5 and about 7.0 stitches / cm, between about 3.5 and about 6.5 stitches / cm, between about 3.5 and about 6.0 stitches / cm, between about 3.5 and about 5.5 stitches / cm, between about 3.5 and about 5.0 stitches / cm, between about 3.5 and about 4.5 stitches / cm, or between about 3.5 and about 4.0 stitches / cm.

[0234] The first surface has a stitch count of between about 4.0 and about 15.0 stitches / cm, between about 4.0 and about 14.5 stitches / cm, between about 4.0 and about 14.0 stitches / cm, between about 4.0 and about 13.5 stitches / cm, between about 4.0 and about 13.0 stitches / cm, between about 4.0 and about 12.5 stitches / cm, between about 4.0 and about 12.0 stitches / cm, between about 4.0 and about 11.5 stitches / cm, between about 4.0 and about 11.0 stitches / cm, between about 4.0 and about 10.5 stitches / cm, and between about 4.0 and about 10.0 stitches / cm. , between about 4.0 and about 9.5 stitches / cm, between about 4.0 and about 9.0 stitches / cm, between about 4.0 and about 8.5 stitches / cm, between about 4.0 and about 8.0 stitches / cm, between about 4.0 and about 7.5 stitches / cm, between about 4.0 and about 7.0 stitches / cm, between about 4.0 and about 6.5 stitches / cm, between about 4.0 and about 6.0 stitches / cm, between about 4.0 and about 5.5 stitches / cm, between about 4.0 and about 5.0 stitches / cm, or between about 4.0 and about 4.5 stitches / cm.

[0235] The first surface has a stitch count of between about 4.5 and about 15.0 stitches / cm, between about 4.5 and about 14.5 stitches / cm, between about 4.5 and about 14.0 stitches / cm, between about 4.5 and about 13.5 stitches / cm, between about 4.5 and about 13.0 stitches / cm, between about 4.5 and about 12.5 stitches / cm, between about 4.5 and about 12.0 stitches / cm, between about 4.5 and about 11.5 stitches / cm, between about 4.5 and about 11.0 stitches / cm, between about 4.5 and about 10.5 stitches / cm, between about 4.5 and about 10.0 The warp stitches may be between about 4.5 and about 9.5 stitches / cm, between about 4.5 and about 9.0 stitches / cm, between about 4.5 and about 8.5 stitches / cm, between about 4.5 and about 8.0 stitches / cm, between about 4.5 and about 7.5 stitches / cm, between about 4.5 and about 7.0 stitches / cm, between about 4.5 and about 6.5 stitches / cm, between about 4.5 and about 6.0 stitches / cm, between about 4.5 and about 5.5 stitches / cm, or between about 4.5 and about 5.0 stitches / cm.

[0236] The first surface has a stitch count of between about 5.0 and about 15.0 stitches / cm, between about 5.0 and about 14.5 stitches / cm, between about 5.0 and about 14.0 stitches / cm, between about 5.0 and about 13.5 stitches / cm, between about 5.0 and about 13.0 stitches / cm, between about 5.0 and about 12.5 stitches / cm, between about 5.0 and about 12.0 stitches / cm, between about 5.0 and about 11.5 stitches / cm, between about 5.0 and about 11.0 stitches / cm, between about 5.0 and about 10.5 stitches / cm, The warp stitches may be between about 5.0 and about 10.0 stitches / cm, between about 5.0 and about 9.5 stitches / cm, between about 5.0 and about 9.0 stitches / cm, between about 5.0 and about 8.5 stitches / cm, between about 5.0 and about 8.0 stitches / cm, between about 5.0 and about 7.5 stitches / cm, between about 5.0 and about 7.0 stitches / cm, between about 5.0 and about 6.5 stitches / cm, between about 5.0 and about 6.0 stitches / cm, or between about 5.0 and about 5.5 stitches / cm.

[0237] The first surface may have a stitch length of between about 5.5 and about 15.0 stitches / cm, between about 5.5 and about 14.5 stitches / cm, between about 5.5 and about 14.0 stitches / cm, between about 5.5 and about 13.5 stitches / cm, between about 5.5 and about 13.0 stitches / cm, between about 5.5 and about 12.5 stitches / cm, between about 5.5 and about 12.0 stitches / cm, between about 5.5 and about 11.5 stitches / cm, between about 5.5 and about 11.0 stitches / cm, between about 5.5 and about 10.5 stitches / cm. The warp stitches may be between about 5.5 and about 10.0 stitches / cm, between about 5.5 and about 9.5 stitches / cm, between about 5.5 and about 9.0 stitches / cm, between about 5.5 and about 8.5 stitches / cm, between about 5.5 and about 8.0 stitches / cm, between about 5.5 and about 7.5 stitches / cm, between about 5.5 and about 7.0 stitches / cm, between about 5.5 and about 6.5 stitches / cm, or between about 5.5 and about 6.0 stitches / cm.

[0238] The first surface has a stitch density of between about 6.0 and about 15.0 stitches / cm, between about 6.0 and about 14.5 stitches / cm, between about 6.0 and about 14.0 stitches / cm, between about 6.0 and about 13.5 stitches / cm, between about 6.0 and about 13.0 stitches / cm, between about 6.0 and about 12.5 stitches / cm, between about 6.0 and about 12.0 stitches / cm, between about 6.0 and about 11.5 stitches / cm, between about 6.0 and about 11.0 stitches / cm, The warp stitches may be between 6.0 and about 10.5 stitches / cm, between about 6.0 and about 10.0 stitches / cm, between about 6.0 and about 9.5 stitches / cm, between about 6.0 and about 9.0 stitches / cm, between about 6.0 and about 8.5 stitches / cm, between about 6.0 and about 8.0 stitches / cm, between about 6.0 and about 7.5 stitches / cm, between about 6.0 and about 7.0 stitches / cm, or between about 6.0 and about 6.5 stitches / cm.

[0239] The first surface may have a stitch length of between about 6.5 and about 15.0 stitches / cm, between about 6.5 and about 14.5 stitches / cm, between about 6.5 and about 14.0 stitches / cm, between about 6.5 and about 13.5 stitches / cm, between about 6.5 and about 13.0 stitches / cm, between about 6.5 and about 12.5 stitches / cm, between about 6.5 and about 12.0 stitches / cm, between about 6.5 and about 11.5 stitches / cm, between about 6.5 and about 11.0 stitches / cm. The warp stitches may be between about 6.5 and about 10.5 stitches / cm, between about 6.5 and about 10.0 stitches / cm, between about 6.5 and about 9.5 stitches / cm, between about 6.5 and about 9.0 stitches / cm, between about 6.5 and about 8.5 stitches / cm, between about 6.5 and about 8.0 stitches / cm, between about 6.5 and about 7.5 stitches / cm, or between about 6.5 and about 7.0 stitches / cm.

[0240] The first surface may comprise warp stitches between about 7.0 and about 15.0 stitches / cm, between about 7.0 and about 14.5 stitches / cm, between about 7.0 and about 14.0 stitches / cm, between about 7.0 and about 13.5 stitches / cm, between about 7.0 and about 13.0 stitches / cm, between about 7.0 and about 12.5 stitches / cm, between about 7.0 and about 12.0 stitches / cm, between about 7.0 and about 11.5 stitches / cm, between about 7.0 and about 11.0 stitches / cm, between about 7.0 and about 10.5 stitches / cm, between about 7.0 and about 10.0 stitches / cm, between about 7.0 and about 9.5 stitches / cm, between about 7.0 and about 9.0 stitches / cm, between about 7.0 and about 8.5 stitches / cm, between about 7.0 and about 8.0 stitches / cm, or between about 7.0 and about 7.5 stitches / cm.

[0241] The first surface may comprise warp stitches between about 7.5 and about 15.0 stitches / cm, between about 7.5 and about 14.5 stitches / cm, between about 7.5 and about 14.0 stitches / cm, between about 7.5 and about 13.5 stitches / cm, between about 7.5 and about 13.0 stitches / cm, between about 7.5 and about 12.5 stitches / cm, between about 7.5 and about 12.0 stitches / cm, between about 7.5 and about 11.5 stitches / cm, between about 7.5 and about 11.0 stitches / cm, between about 7.5 and about 10.5 stitches / cm, between about 7.5 and about 10.0 stitches / cm, between about 7.5 and about 9.5 stitches / cm, between about 7.5 and about 9.0 stitches / cm, between about 7.5 and about 8.5 stitches / cm, or between about 7.5 and about 8.0 stitches / cm.

[0242] The first surface may include warp stitches between about 8.0 and about 15.0 stitches / cm, between about 8.0 and about 14.5 stitches / cm, between about 8.0 and about 14.0 stitches / cm, between about 8.0 and about 13.5 stitches / cm, between about 8.0 and about 13.0 stitches / cm, between about 8.0 and about 12.5 stitches / cm, between about 8.0 and about 12.0 stitches / cm, between about 8.0 and about 11.5 stitches / cm, between about 8.0 and about 11.0 stitches / cm, between about 8.0 and about 10.5 stitches / cm, between about 8.0 and about 10.0 stitches / cm, between about 8.0 and about 9.5 stitches / cm, between about 8.0 and about 9.0 stitches / cm, or between about 8.0 and about 8.5 stitches / cm.

[0243] The first surface may include warp stitches between about 8.5 and about 15.0 stitches / cm, between about 8.5 and about 14.5 stitches / cm, between about 8.5 and about 14.0 stitches / cm, between about 8.5 and about 13.5 stitches / cm, between about 8.5 and about 13.0 stitches / cm, between about 8.5 and about 12.5 stitches / cm, between about 8.5 and about 12.0 stitches / cm, between about 8.5 and about 11.5 stitches / cm, between about 8.5 and about 11.0 stitches / cm, between about 8.5 and about 10.5 stitches / cm, between about 8.5 and about 10.0 stitches / cm, between about 8.5 and about 9.5 stitches / cm, or between about 8.5 and about 9.0 stitches / cm.

[0244] The first surface may include warp stitches between about 9.0 and about 15.0 stitches / cm, between about 9.0 and about 14.5 stitches / cm, between about 9.0 and about 14.0 stitches / cm, between about 9.0 and about 13.5 stitches / cm, between about 9.0 and about 13.0 stitches / cm, between about 9.0 and about 12.5 stitches / cm, between about 9.0 and about 12.0 stitches / cm, between about 9.0 and about 11.5 stitches / cm, between about 9.0 and about 11.0 stitches / cm, between about 9.0 and about 10.5 stitches / cm, between about 9.0 and about 10.0 stitches / cm, or between about 9.0 and about 9.5 stitches / cm.

[0245] The first surface may include warp stitches between about 9.5 and about 15.0 stitches / cm, between about 9.5 and about 14.5 stitches / cm, between about 9.5 and about 14.0 stitches / cm, between about 9.5 and about 13.5 stitches / cm, between about 9.5 and about 13.0 stitches / cm, between about 9.5 and about 12.5 stitches / cm, between about 9.5 and about 12.0 stitches / cm, between about 9.5 and about 11.5 stitches / cm, between about 9.5 and about 11.0 stitches / cm, between about 9.5 and about 10.5 stitches / cm, or between about 9.5 and about 10.0 stitches / cm.

[0246] The first surface may include warp stitches between about 10.0 and about 15.0 stitches / cm, between about 10.0 and about 14.5 stitches / cm, between about 10.0 and about 14.0 stitches / cm, between about 10.0 and about 13.5 stitches / cm, between about 10.0 and about 13.0 stitches / cm, between about 10.0 and about 12.5 stitches / cm, between about 10.0 and about 12.0 stitches / cm, between about 10.0 and about 11.5 stitches / cm, between about 10.0 and about 11.0 stitches / cm, or between about 10.0 and about 10.5 stitches / cm.

[0247] The first surface may include warp stitches between about 10.5 and about 15.0 stitches / cm, between about 10.5 and about 14.5 stitches / cm, between about 10.5 and about 14.0 stitches / cm, between about 10.5 and about 13.5 stitches / cm, between about 10.5 and about 13.0 stitches / cm, between about 10.5 and about 12.5 stitches / cm, between about 10.5 and about 12.0 stitches / cm, between about 10.5 and about 11.5 stitches / cm, or between about 10.5 and about 11.0 stitches / cm.

[0248] The first surface may include warp stitches between about 11.0 and about 15.0 stitches / cm, between about 11.0 and about 14.5 stitches / cm, between about 11.0 and about 14.0 stitches / cm, between about 11.0 and about 13.5 stitches / cm, between about 11.0 and about 13.0 stitches / cm, between about 11.0 and about 12.5 stitches / cm, between about 11.0 and about 12.0 stitches / cm, or between about 11.0 and about 11.5 stitches / cm.

[0249] The first surface may include warp stitches between about 11.5 and about 15.0 stitches / cm, between about 11.5 and about 14.5 stitches / cm, between about 11.5 and about 14.0 stitches / cm, between about 11.5 and about 13.5 stitches / cm, between about 11.5 and about 13.0 stitches / cm, between about 11.5 and about 12.5 stitches / cm, or between about 11.5 and about 12.0 stitches / cm.

[0250] The first surface may include warp stitches between about 12.0 and about 15.0 stitches / cm, between about 12.0 and about 14.5 stitches / cm, between about 12.0 and about 14.0 stitches / cm, between about 12.0 and about 13.5 stitches / cm, between about 12.0 and about 13.0 stitches / cm, or between about 12.0 and about 12.5 stitches / cm.

[0251] The first surface may include warp stitches between about 12.5 and about 15.0 stitches / cm, between about 12.5 and about 14.5 stitches / cm, between about 12.5 and about 14.0 stitches / cm, between about 12.5 and about 13.5 stitches / cm, or between about 12.5 and about 13.0 stitches / cm.

[0252] The first surface may include warp stitches between about 13.0 and about 15.0 stitches / cm, between about 13.0 and about 14.5 stitches / cm, between about 13.0 and about 14.0 stitches / cm, or between about 13.0 and about 13.5 stitches / cm.

[0253] The first surface may include warp stitches between about 13.5 and about 15.0 stitches / cm, between about 13.5 and about 14.5 stitches / cm, or between about 13.5 and about 14.0 stitches / cm.

[0254] The first surface may include warp stitches between about 14.0 and about 15.0 stitches / cm, or between about 14.0 and about 14.5 stitches / cm.

[0255] The first surface may include between about 14.5 and about 15.0 warp stitches / cm.

[0256] The second surface has a stitch count of between about 0.1 and about 15.0 stitches / cm, between about 0.1 and about 14.5 stitches / cm, between about 0.1 and about 14.0 stitches / cm, between about 0.1 and about 13.5 stitches / cm, between about 0.1 and about 13.0 stitches / cm, between about 0.1 and about 12.5 stitches / cm, between about 0.1 and about 12.0 stitches / cm, and between about 0.1 and about 11.5 stitches / cm. , between about 0.1 and about 11.0 stitches / cm, between about 0.1 and about 10.5 stitches / cm, between about 0.1 and about 10.0 stitches / cm, between about 0.1 and about 9.5 stitches / cm, between about 0.1 and about 9.0 stitches / cm, between about 0.1 and about 8.5 stitches / cm, between about 0.1 and about 8.0 stitches / cm, between about 0.1 and about 7.5 stitches / cm, between about 0.1 and about 7.0 stitches / cm, between about 0.1 and about 6.5 stitches / cm, between about 0.1 and about 6.0 stitches / cm, between about 0.1 and about 5.5 stitches / cm, between about 0.1 and about 5.0 stitches / cm, between about 0.1 and about 4.5 stitches / cm, between about 0.1 and about 4.0 stitches / cm, between about 0.1 and about 3.5 stitches / cm, between about 0.1 and about 3.0 stitches / cm, between about 0.1 and about 2.5 stitches / cm, between about 0.1 and about 2.0 stitches / cm, between about 0.1 and about 1.5 stitches / cm, between about 0.1 and about 1.0 stitches / cm, between about 0.1 and about 0.8 stitches / cm, between about 0.1 and about 0.6 stitches / cm, between about 0.1 and about 0.4 stitches / cm, or between about 0.1 and about 0.2 stitches / cm.

[0257] The second surface has a stitch count of between about 0.2 and about 15.0 stitches / cm, between about 0.2 and about 14.5 stitches / cm, between about 0.2 and about 14.0 stitches / cm, between about 0.2 and about 13.5 stitches / cm, between about 0.2 and about 13.0 stitches / cm, between about 0.2 and about 12.5 stitches / cm, between about 0.2 and about 12.0 stitches / cm, between about 0.2 and about 11.5 stitches / cm, between about 0.2 and about 11.0 stitches / cm, between about 0.2 and about 10.5 stitches / cm, between about 0.2 and about 10.0 stitches / cm, between about 0.2 and about 9.5 stitches / cm, between about 0.2 and about 9.0 stitches / cm, between about 0.2 and about 8.5 stitches / cm, between about 0.2 and about 8.0 stitches / cm, and between about 0.2 and about 7.5 stitches / cm. , between about 0.2 and about 7.0 stitches / cm, between about 0.2 and about 6.5 stitches / cm, between about 0.2 and about 6.0 stitches / cm, between about 0.2 and about 5.5 stitches / cm, between about 0.2 and about 5.0 stitches / cm, between about 0.2 and about 4.5 stitches / cm, between about 0.2 and about 4.0 stitches / cm, between about 0.2 and about 3.5 stitches / cm, between about 0.2 and about 3.0 stitches / cm, between about 0.2 and about 2.5 stitches / cm, between about 0.2 and about 2.0 stitches / cm, between about 0.2 and about 1.5 stitches / cm, between about 0.2 and about 1.0 stitches / cm, between about 0.2 and about 0.8 stitches / cm, between about 0.2 and about 0.6 stitches / cm, or between about 0.2 and about 0.4 stitches / cm.

[0258] The second surface has a stitch count of between about 0.4 and about 15.0 stitches / cm, between about 0.4 and about 14.5 stitches / cm, between about 0.4 and about 14.0 stitches / cm, between about 0.4 and about 13.5 stitches / cm, between about 0.4 and about 13.0 stitches / cm, between about 0.4 and about 12.5 stitches / cm, between about 0.4 and about 12.0 stitches / cm, between about 0.4 and about 11.5 stitches / cm, between about 0.4 and about 11.0 stitches / cm, between about 0.4 and about 10.5 stitches / cm, between about 0.4 and about 10.0 stitches / cm, between about 0.4 and about 9.5 stitches / cm, between about 0.4 and about 9.0 stitches / cm, between about 0.4 and about 8.5 stitches / cm, between about 0.4 and about 8.0 stitches / cm, between about 0.4 and about 7.5 The weft stitch may be between about 0.4 and about 7.0 stitches / cm, between about 0.4 and about 6.5 stitches / cm, between about 0.4 and about 6.0 stitches / cm, between about 0.4 and about 5.5 stitches / cm, between about 0.4 and about 5.0 stitches / cm, between about 0.4 and about 4.5 stitches / cm, between about 0.4 and about 4.0 stitches / cm, between about 0.4 and about 3.5 stitches / cm, between about 0.4 and about 3.0 stitches / cm, between about 0.4 and about 2.5 stitches / cm, between about 0.4 and about 2.0 stitches / cm, between about 0.4 and about 1.5 stitches / cm, between about 0.4 and about 1.0 stitches / cm, between about 0.4 and about 0.8 stitches / cm, or between about 0.4 and about 0.6 stitches / cm.

[0259] The second surface has a stitch count of between about 0.6 and about 15.0 stitches / cm, between about 0.6 and about 14.5 stitches / cm, between about 0.6 and about 14.0 stitches / cm, between about 0.6 and about 13.5 stitches / cm, between about 0.6 and about 13.0 stitches / cm, between about 0.6 and about 12.5 stitches / cm, between about 0.6 and about 12.0 stitches / cm, between about 0.6 and about 11.5 stitches / cm, between about 0.6 and about 11.0 stitches / cm, between about 0.6 and about 10.5 stitches / cm, between about 0.6 and about 10.0 stitches / cm, between about 0.6 and about 9.5 stitches / cm, between about 0.6 and about 9.0 stitches / cm, between about 0.6 and about 8.5 stitches / cm, and between about 0.6 and about 8.0 stitches / cm. , between about 0.6 and about 7.5 stitches / cm, between about 0.6 and about 7.0 stitches / cm, between about 0.6 and about 6.5 stitches / cm, between about 0.6 and about 6.0 stitches / cm, between about 0.6 and about 5.5 stitches / cm, between about 0.6 and about 5.0 stitches / cm, between about 0.6 and about 4.5 stitches / cm, between about 0.6 and about 4.0 stitches / cm, between about 0.6 and about 3.5 stitches / cm, between about 0.6 and about 3.0 stitches / cm, between about 0.6 and about 2.5 stitches / cm, between about 0.6 and about 2.0 stitches / cm, between about 0.6 and about 1.5 stitches / cm, between about 0.6 and about 1.0 stitches / cm, or between about 0.6 and about 0.8 stitches / cm.

[0260] The second surface has a stitch count of between about 0.8 and about 15.0 stitches / cm, between about 0.8 and about 14.5 stitches / cm, between about 0.8 and about 14.0 stitches / cm, between about 0.8 and about 13.5 stitches / cm, between about 0.8 and about 13.0 stitches / cm, between about 0.8 and about 12.5 stitches / cm, between about 0.8 and about 12.0 stitches / cm, between about 0.8 and about 11.5 stitches / cm, between about 0.8 and about 11.0 stitches / cm, between about 0.8 and about 10.5 stitches / cm, between about 0.8 and about 10.0 stitches / cm, between about 0.8 and about 9.5 stitches / cm, between about 0.8 and about 9.0 stitches / cm, between about 0.8 and about 8.5 stitches / cm, between about 0.8 and about 8.0 The weft stitch may be between about 0.8 and about 7.5 stitches / cm, between about 0.8 and about 7.0 stitches / cm, between about 0.8 and about 6.5 stitches / cm, between about 0.8 and about 6.0 stitches / cm, between about 0.8 and about 5.5 stitches / cm, between about 0.8 and about 5.0 stitches / cm, between about 0.8 and about 4.5 stitches / cm, between about 0.8 and about 4.0 stitches / cm, between about 0.8 and about 3.5 stitches / cm, between about 0.8 and about 3.0 stitches / cm, between about 0.8 and about 2.5 stitches / cm, between about 0.8 and about 2.0 stitches / cm, between about 0.8 and about 1.5 stitches / cm, or between about 0.8 and about 1.0 stitch / cm.

[0261] The second surface has a stitch count of between about 1.0 and about 15.0 stitches / cm, between about 1.0 and about 14.5 stitches / cm, between about 1.0 and about 14.0 stitches / cm, between about 1.0 and about 13.5 stitches / cm, between about 1.0 and about 13.0 stitches / cm, between about 1.0 and about 12.5 stitches / cm, between about 1.0 and about 12.0 stitches / cm, between about 1.0 and about 11.5 stitches / cm, between about 1.0 and about 11.0 stitches / cm, between about 1.0 and about 10.5 stitches / cm, between about 1.0 and about 10.0 stitches / cm, between about 1.0 and about 9.5 stitches / cm, between about 1.0 and about 9.0 stitches / cm, and between about 1.0 and about 8.5 stitches / cm. , between about 1.0 and about 8.0 stitches / cm, between about 1.0 and about 7.5 stitches / cm, between about 1.0 and about 7.0 stitches / cm, between about 1.0 and about 6.5 stitches / cm, between about 1.0 and about 6.0 stitches / cm, between about 1.0 and about 5.5 stitches / cm, between about 1.0 and about 5.0 stitches / cm, between about 1.0 and about 4.5 stitches / cm, between about 1.0 and about 4.0 stitches / cm, between about 1.0 and about 3.5 stitches / cm, between about 1.0 and about 3.0 stitches / cm, between about 1.0 and about 2.5 stitches / cm, between about 1.0 and about 2.0 stitches / cm, or between about 1.0 and about 1.5 stitches / cm.

[0262] The second surface has a stitch count of between about 1.5 and about 15.0 stitches / cm, between about 1.5 and about 14.5 stitches / cm, between about 1.5 and about 14.0 stitches / cm, between about 1.5 and about 13.5 stitches / cm, between about 1.5 and about 13.0 stitches / cm, between about 1.5 and about 12.5 stitches / cm, between about 1.5 and about 12.0 stitches / cm, between about 1.5 and about 11.5 stitches / cm, between about 1.5 and about 11.0 stitches / cm, between about 1.5 and about 10.5 stitches / cm, between about 1.5 and about 10.0 stitches / cm, between about 1.5 and about 9.5 stitches / cm, between about 1.5 and about 9.0 stitches / cm, between about 1.5 and about 8.5 The weft stitches may be between about 1.5 and about 8.0 stitches / cm, between about 1.5 and about 7.5 stitches / cm, between about 1.5 and about 7.0 stitches / cm, between about 1.5 and about 6.5 stitches / cm, between about 1.5 and about 6.0 stitches / cm, between about 1.5 and about 5.5 stitches / cm, between about 1.5 and about 5.0 stitches / cm, between about 1.5 and about 4.5 stitches / cm, between about 1.5 and about 4.0 stitches / cm, between about 1.5 and about 3.5 stitches / cm, between about 1.5 and about 3.0 stitches / cm, between about 1.5 and about 2.5 stitches / cm, or between about 1.5 and about 2.0 stitches / cm.

[0263] The second surface has stitches between about 2.0 and about 15.0, between about 2.0 and about 14.5, between about 2.0 and about 14.0, between about 2.0 and about 13.5, between about 2.0 and about 13.0, between about 2.0 and about 12.5, between about 2.0 and about 12.0, between about 2.0 and about 11.5, between about 2.0 and about 11.0, between about 2.0 and about 10.5, between about 2.0 and about 10.0, between about 2.0 and about 9.5, and between about 2.0 and about 9.0. , between about 2.0 and about 8.5 stitches / cm, between about 2.0 and about 8.0 stitches / cm, between about 2.0 and about 7.5 stitches / cm, between about 2.0 and about 7.0 stitches / cm, between about 2.0 and about 6.5 stitches / cm, between about 2.0 and about 6.0 stitches / cm, between about 2.0 and about 5.5 stitches / cm, between about 2.0 and about 5.0 stitches / cm, between about 2.0 and about 4.5 stitches / cm, between about 2.0 and about 4.0 stitches / cm, between about 2.0 and about 3.5 stitches / cm, between about 2.0 and about 3.0 stitches / cm, or between about 2.0 and about 2.5 stitches / cm.

[0264] The second surface has a stitch count of between about 2.5 and about 15.0 stitches / cm, between about 2.5 and about 14.5 stitches / cm, between about 2.5 and about 14.0 stitches / cm, between about 2.5 and about 13.5 stitches / cm, between about 2.5 and about 13.0 stitches / cm, between about 2.5 and about 12.5 stitches / cm, between about 2.5 and about 12.0 stitches / cm, between about 2.5 and about 11.5 stitches / cm, between about 2.5 and about 11.0 stitches / cm, between about 2.5 and about 10.5 stitches / cm, between about 2.5 and about 10.0 stitches / cm, between about 2.5 and about 9.5 stitches / cm, between about 2.5 and about 9.0 The weft stitches may be between about 2.5 and about 8.5 stitches / cm, between about 2.5 and about 8.0 stitches / cm, between about 2.5 and about 7.5 stitches / cm, between about 2.5 and about 7.0 stitches / cm, between about 2.5 and about 6.5 stitches / cm, between about 2.5 and about 6.0 stitches / cm, between about 2.5 and about 5.5 stitches / cm, between about 2.5 and about 5.0 stitches / cm, between about 2.5 and about 4.5 stitches / cm, between about 2.5 and about 4.0 stitches / cm, between about 2.5 and about 3.5 stitches / cm, or between about 2.5 and about 3.0 stitches / cm.

[0265] The second surface has stitches between about 3.0 and about 15.0, between about 3.0 and about 14.5, between about 3.0 and about 14.0, between about 3.0 and about 13.5, between about 3.0 and about 13.0, between about 3.0 and about 12.5, between about 3.0 and about 12.0, between about 3.0 and about 11.5, between about 3.0 and about 11.0, between about 3.0 and about 10.5, between about 3.0 and about 10.0, and between about 3.0 and about 9.5. , between about 3.0 and about 9.0 stitches / cm, between about 3.0 and about 8.5 stitches / cm, between about 3.0 and about 8.0 stitches / cm, between about 3.0 and about 7.5 stitches / cm, between about 3.0 and about 7.0 stitches / cm, between about 3.0 and about 6.5 stitches / cm, between about 3.0 and about 6.0 stitches / cm, between about 3.0 and about 5.5 stitches / cm, between about 3.0 and about 5.0 stitches / cm, between about 3.0 and about 4.5 stitches / cm, between about 3.0 and about 4.0 stitches / cm, or between about 3.0 and about 3.5 stitches / cm.

[0266] The second surface has a stitch length of between about 3.5 and about 15.0 stitches / cm, between about 3.5 and about 14.5 stitches / cm, between about 3.5 and about 14.0 stitches / cm, between about 3.5 and about 13.5 stitches / cm, between about 3.5 and about 13.0 stitches / cm, between about 3.5 and about 12.5 stitches / cm, between about 3.5 and about 12.0 stitches / cm, between about 3.5 and about 11.5 stitches / cm, between about 3.5 and about 11.0 stitches / cm, between about 3.5 and about 10.5 stitches / cm, between about 3.5 and about 10.0 stitches / cm, between about 3.5 and about 9.5 The weft stitches may be between about 3.5 and about 9.0 stitches / cm, between about 3.5 and about 8.5 stitches / cm, between about 3.5 and about 8.0 stitches / cm, between about 3.5 and about 7.5 stitches / cm, between about 3.5 and about 7.0 stitches / cm, between about 3.5 and about 6.5 stitches / cm, between about 3.5 and about 6.0 stitches / cm, between about 3.5 and about 5.5 stitches / cm, between about 3.5 and about 5.0 stitches / cm, between about 3.5 and about 4.5 stitches / cm, or between about 3.5 and about 4.0 stitches / cm.

[0267] The second surface has stitches between about 4.0 and about 15.0, between about 4.0 and about 14.5, between about 4.0 and about 14.0, between about 4.0 and about 13.5, between about 4.0 and about 13.0, between about 4.0 and about 12.5, between about 4.0 and about 12.0, between about 4.0 and about 11.5, between about 4.0 and about 11.0, between about 4.0 and about 10.5, and between about 4.0 and about 10.0. , between about 4.0 and about 9.5 stitches / cm, between about 4.0 and about 9.0 stitches / cm, between about 4.0 and about 8.5 stitches / cm, between about 4.0 and about 8.0 stitches / cm, between about 4.0 and about 7.5 stitches / cm, between about 4.0 and about 7.0 stitches / cm, between about 4.0 and about 6.5 stitches / cm, between about 4.0 and about 6.0 stitches / cm, between about 4.0 and about 5.5 stitches / cm, between about 4.0 and about 5.0 stitches / cm, or between about 4.0 and about 4.5 stitches / cm.

[0268] The second surface has a stitch count of between about 4.5 and about 15.0 stitches / cm, between about 4.5 and about 14.5 stitches / cm, between about 4.5 and about 14.0 stitches / cm, between about 4.5 and about 13.5 stitches / cm, between about 4.5 and about 13.0 stitches / cm, between about 4.5 and about 12.5 stitches / cm, between about 4.5 and about 12.0 stitches / cm, between about 4.5 and about 11.5 stitches / cm, between about 4.5 and about 11.0 stitches / cm, between about 4.5 and about 10.5 stitches / cm, between about 4.5 and about 10.0 The weft stitches may be between about 4.5 and about 9.5 stitches / cm, between about 4.5 and about 9.0 stitches / cm, between about 4.5 and about 8.5 stitches / cm, between about 4.5 and about 8.0 stitches / cm, between about 4.5 and about 7.5 stitches / cm, between about 4.5 and about 7.0 stitches / cm, between about 4.5 and about 6.5 stitches / cm, between about 4.5 and about 6.0 stitches / cm, between about 4.5 and about 5.5 stitches / cm, or between about 4.5 and about 5.0 stitches / cm.

[0269] The second surface has a stitching density of between about 5.0 and about 15.0 stitches / cm, between about 5.0 and about 14.5 stitches / cm, between about 5.0 and about 14.0 stitches / cm, between about 5.0 and about 13.5 stitches / cm, between about 5.0 and about 13.0 stitches / cm, between about 5.0 and about 12.5 stitches / cm, between about 5.0 and about 12.0 stitches / cm, between about 5.0 and about 11.5 stitches / cm, between about 5.0 and about 11.0 stitches / cm, between about 5.0 and about 10.5 stitches / cm, The weft stitches may be between about 5.0 and about 10.0 stitches / cm, between about 5.0 and about 9.5 stitches / cm, between about 5.0 and about 9.0 stitches / cm, between about 5.0 and about 8.5 stitches / cm, between about 5.0 and about 8.0 stitches / cm, between about 5.0 and about 7.5 stitches / cm, between about 5.0 and about 7.0 stitches / cm, between about 5.0 and about 6.5 stitches / cm, between about 5.0 and about 6.0 stitches / cm, or between about 5.0 and about 5.5 stitches / cm.

[0270] The second surface has a stitch count of between about 5.5 and about 15.0 stitches / cm, between about 5.5 and about 14.5 stitches / cm, between about 5.5 and about 14.0 stitches / cm, between about 5.5 and about 13.5 stitches / cm, between about 5.5 and about 13.0 stitches / cm, between about 5.5 and about 12.5 stitches / cm, between about 5.5 and about 12.0 stitches / cm, between about 5.5 and about 11.5 stitches / cm, between about 5.5 and about 11.0 stitches / cm, between about 5.5 and about 10.5 stitches / cm. The weft stitches may be between about 5.5 and about 10.0 stitches / cm, between about 5.5 and about 9.5 stitches / cm, between about 5.5 and about 9.0 stitches / cm, between about 5.5 and about 8.5 stitches / cm, between about 5.5 and about 8.0 stitches / cm, between about 5.5 and about 7.5 stitches / cm, between about 5.5 and about 7.0 stitches / cm, between about 5.5 and about 6.5 stitches / cm, or between about 5.5 and about 6.0 stitches / cm.

[0271] The second surface has a stitch count of between about 6.0 and about 15.0 stitches / cm, between about 6.0 and about 14.5 stitches / cm, between about 6.0 and about 14.0 stitches / cm, between about 6.0 and about 13.5 stitches / cm, between about 6.0 and about 13.0 stitches / cm, between about 6.0 and about 12.5 stitches / cm, between about 6.0 and about 12.0 stitches / cm, between about 6.0 and about 11.5 stitches / cm, between about 6.0 and about 11.0 stitches / cm, The weft stitches may be between 6.0 and about 10.5 stitches / cm, between about 6.0 and about 10.0 stitches / cm, between about 6.0 and about 9.5 stitches / cm, between about 6.0 and about 9.0 stitches / cm, between about 6.0 and about 8.5 stitches / cm, between about 6.0 and about 8.0 stitches / cm, between about 6.0 and about 7.5 stitches / cm, between about 6.0 and about 7.0 stitches / cm, or between about 6.0 and about 6.5 stitches / cm.

[0272] The second surface has a stitch count of between about 6.5 and about 15.0 stitches / cm, between about 6.5 and about 14.5 stitches / cm, between about 6.5 and about 14.0 stitches / cm, between about 6.5 and about 13.5 stitches / cm, between about 6.5 and about 13.0 stitches / cm, between about 6.5 and about 12.5 stitches / cm, between about 6.5 and about 12.0 stitches / cm, between about 6.5 and about 11.5 stitches / cm, between about 6.5 and about 11.0 stitches / cm. The weft stitches may be between about 6.5 and about 10.5 stitches / cm, between about 6.5 and about 10.0 stitches / cm, between about 6.5 and about 9.5 stitches / cm, between about 6.5 and about 9.0 stitches / cm, between about 6.5 and about 8.5 stitches / cm, between about 6.5 and about 8.0 stitches / cm, between about 6.5 and about 7.5 stitches / cm, or between about 6.5 and about 7.0 stitches / cm.

[0273] The second surface may comprise a weft stitching of between about 7.0 and about 15.0 stitches / cm, between about 7.0 and about 14.5 stitches / cm, between about 7.0 and about 14.0 stitches / cm, between about 7.0 and about 13.5 stitches / cm, between about 7.0 and about 13.0 stitches / cm, between about 7.0 and about 12.5 stitches / cm, between about 7.0 and about 12.0 stitches / cm, between about 7.0 and about 11.5 stitches / cm, between about 7.0 and about 11.0 stitches / cm, between about 7.0 and about 10.5 stitches / cm, between about 7.0 and about 10.0 stitches / cm, between about 7.0 and about 9.5 stitches / cm, between about 7.0 and about 9.0 stitches / cm, between about 7.0 and about 8.5 stitches / cm, between about 7.0 and about 8.0 stitches / cm, or between about 7.0 and about 7.5 stitches / cm.

[0274] The second surface may comprise a weft stitching of between about 7.5 and about 15.0 stitches / cm, between about 7.5 and about 14.5 stitches / cm, between about 7.5 and about 14.0 stitches / cm, between about 7.5 and about 13.5 stitches / cm, between about 7.5 and about 13.0 stitches / cm, between about 7.5 and about 12.5 stitches / cm, between about 7.5 and about 12.0 stitches / cm, between about 7.5 and about 11.5 stitches / cm, between about 7.5 and about 11.0 stitches / cm, between about 7.5 and about 10.5 stitches / cm, between about 7.5 and about 10.0 stitches / cm, between about 7.5 and about 9.5 stitches / cm, between about 7.5 and about 9.0 stitches / cm, between about 7.5 and about 8.5 stitches / cm, or between about 7.5 and about 8.0 stitches / cm.

[0275] The second surface may comprise a weft stitching of between about 8.0 and about 15.0 stitches / cm, between about 8.0 and about 14.5 stitches / cm, between about 8.0 and about 14.0 stitches / cm, between about 8.0 and about 13.5 stitches / cm, between about 8.0 and about 13.0 stitches / cm, between about 8.0 and about 12.5 stitches / cm, between about 8.0 and about 12.0 stitches / cm, between about 8.0 and about 11.5 stitches / cm, between about 8.0 and about 11.0 stitches / cm, between about 8.0 and about 10.5 stitches / cm, between about 8.0 and about 10.0 stitches / cm, between about 8.0 and about 9.5 stitches / cm, between about 8.0 and about 9.0 stitches / cm, or between about 8.0 and about 8.5 stitches / cm.

[0276] The second surface may comprise weft stitches between about 8.5 and about 15.0 stitches / cm, between about 8.5 and about 14.5 stitches / cm, between about 8.5 and about 14.0 stitches / cm, between about 8.5 and about 13.5 stitches / cm, between about 8.5 and about 13.0 stitches / cm, between about 8.5 and about 12.5 stitches / cm, between about 8.5 and about 12.0 stitches / cm, between about 8.5 and about 11.5 stitches / cm, between about 8.5 and about 11.0 stitches / cm, between about 8.5 and about 10.5 stitches / cm, between about 8.5 and about 10.0 stitches / cm, between about 8.5 and about 9.5 stitches / cm, or between about 8.5 and about 9.0 stitches / cm.

[0277] The second surface may comprise a weft stitching of between about 9.0 and about 15.0 stitches / cm, between about 9.0 and about 14.5 stitches / cm, between about 9.0 and about 14.0 stitches / cm, between about 9.0 and about 13.5 stitches / cm, between about 9.0 and about 13.0 stitches / cm, between about 9.0 and about 12.5 stitches / cm, between about 9.0 and about 12.0 stitches / cm, between about 9.0 and about 11.5 stitches / cm, between about 9.0 and about 11.0 stitches / cm, between about 9.0 and about 10.5 stitches / cm, between about 9.0 and about 10.0 stitches / cm, or between about 9.0 and about 9.5 stitches / cm.

[0278] The second surface may comprise weft stitches between about 9.5 and about 15.0 stitches / cm, between about 9.5 and about 14.5 stitches / cm, between about 9.5 and about 14.0 stitches / cm, between about 9.5 and about 13.5 stitches / cm, between about 9.5 and about 13.0 stitches / cm, between about 9.5 and about 12.5 stitches / cm, between about 9.5 and about 12.0 stitches / cm, between about 9.5 and about 11.5 stitches / cm, between about 9.5 and about 11.0 stitches / cm, between about 9.5 and about 10.5 stitches / cm, or between about 9.5 and about 10.0 stitches / cm.

[0279] The second surface may include weft stitches between about 10.0 and about 15.0 stitches / cm, between about 10.0 and about 14.5 stitches / cm, between about 10.0 and about 14.0 stitches / cm, between about 10.0 and about 13.5 stitches / cm, between about 10.0 and about 13.0 stitches / cm, between about 10.0 and about 12.5 stitches / cm, between about 10.0 and about 12.0 stitches / cm, between about 10.0 and about 11.5 stitches / cm, between about 10.0 and about 11.0 stitches / cm, or between about 10.0 and about 10.5 stitches / cm.

[0280] The second surface may include weft stitches between about 10.5 and about 15.0 stitches / cm, between about 10.5 and about 14.5 stitches / cm, between about 10.5 and about 14.0 stitches / cm, between about 10.5 and about 13.5 stitches / cm, between about 10.5 and about 13.0 stitches / cm, between about 10.5 and about 12.5 stitches / cm, between about 10.5 and about 12.0 stitches / cm, between about 10.5 and about 11.5 stitches / cm, or between about 10.5 and about 11.0 stitches / cm.

[0281] The second surface may include weft stitches between about 11.0 and about 15.0 stitches / cm, between about 11.0 and about 14.5 stitches / cm, between about 11.0 and about 14.0 stitches / cm, between about 11.0 and about 13.5 stitches / cm, between about 11.0 and about 13.0 stitches / cm, between about 11.0 and about 12.5 stitches / cm, between about 11.0 and about 12.0 stitches / cm, or between about 11.0 and about 11.5 stitches / cm.

[0282] The second surface may include weft stitches between about 11.5 and about 15.0 stitches / cm, between about 11.5 and about 14.5 stitches / cm, between about 11.5 and about 14.0 stitches / cm, between about 11.5 and about 13.5 stitches / cm, between about 11.5 and about 13.0 stitches / cm, between about 11.5 and about 12.5 stitches / cm, or between about 11.5 and about 12.0 stitches / cm.

[0283] The second surface may include weft stitches between about 12.0 and about 15.0 stitches / cm, between about 12.0 and about 14.5 stitches / cm, between about 12.0 and about 14.0 stitches / cm, between about 12.0 and about 13.5 stitches / cm, between about 12.0 and about 13.0 stitches / cm, or between about 12.0 and about 12.5 stitches / cm.

[0284] The second surface may include weft stitches between about 12.5 and about 15.0 stitches / cm, between about 12.5 and about 14.5 stitches / cm, between about 12.5 and about 14.0 stitches / cm, between about 12.5 and about 13.5 stitches / cm, or between about 12.5 and about 13.0 stitches / cm.

[0285] The second surface may include weft stitches between about 13.0 and about 15.0 stitches / cm, between about 13.0 and about 14.5 stitches / cm, between about 13.0 and about 14.0 stitches / cm, or between about 13.0 and about 13.5 stitches / cm.

[0286] The second surface may include weft stitches between about 13.5 and about 15.0 stitches / cm, between about 13.5 and about 14.5 stitches / cm, or between about 13.5 and about 14.0 stitches / cm.

[0287] The second surface may include weft stitches between about 14.0 and about 15.0 stitches / cm, or between about 14.0 and about 14.5 stitches / cm.

[0288] The second surface may include between about 14.5 and about 15.0 weft stitches / cm.

[0289] The second surface has a stitch count of between about 0.1 and about 15.0 stitches / cm, between about 0.1 and about 14.5 stitches / cm, between about 0.1 and about 14.0 stitches / cm, between about 0.1 and about 13.5 stitches / cm, between about 0.1 and about 13.0 stitches / cm, between about 0.1 and about 12.5 stitches / cm, between about 0.1 and about 12.0 stitches / cm, and between about 0.1 and about 11.5 stitches / cm. , between about 0.1 and about 11.0 stitches / cm, between about 0.1 and about 10.5 stitches / cm, between about 0.1 and about 10.0 stitches / cm, between about 0.1 and about 9.5 stitches / cm, between about 0.1 and about 9.0 stitches / cm, between about 0.1 and about 8.5 stitches / cm, between about 0.1 and about 8.0 stitches / cm, between about 0.1 and about 7.5 stitches / cm, between about 0.1 and about 7.0 The warp stitches may be between about 0.1 and about 6.5 stitches / cm, between about 0.1 and about 6.0 stitches / cm, between about 0.1 and about 5.5 stitches / cm, between about 0.1 and about 5.0 stitches / cm, between about 0.1 and about 4.5 stitches / cm, between about 0.1 and about 4.0 stitches / cm, between about 0.1 and about 3.5 stitches / cm, between about 0.1 and about 3.0 stitches / cm, between about 0.1 and about 2.5 stitches / cm, between about 0.1 and about 2.0 stitches / cm, between about 0.1 and about 1.5 stitches / cm, between about 0.1 and about 1.0 stitches / cm, between about 0.1 and about 0.8 stitches / cm, between about 0.1 and about 0.6 stitches / cm, between about 0.1 and about 0.4 stitches / cm, or between about 0.1 and about 0.2 stitches / cm.

[0290] The second surface has a stitch count of between about 0.2 and about 15.0 stitches / cm, between about 0.2 and about 14.5 stitches / cm, between about 0.2 and about 14.0 stitches / cm, between about 0.2 and about 13.5 stitches / cm, between about 0.2 and about 13.0 stitches / cm, between about 0.2 and about 12.5 stitches / cm, between about 0.2 and about 12.0 stitches / cm, between about 0.2 and about 11.5 stitches / cm, between about 0.2 and about 11.0 stitches / cm, between about 0.2 and about 10.5 stitches / cm, between about 0.2 and about 10.0 stitches / cm, between about 0.2 and about 9.5 stitches / cm, between about 0.2 and about 9.0 stitches / cm, between about 0.2 and about 8.5 stitches / cm, between about 0.2 and about 8.0 stitches / cm, and between about 0.2 and about 7.5 stitches / cm. , between about 0.2 and about 7.0 stitches / cm, between about 0.2 and about 6.5 stitches / cm, between about 0.2 and about 6.0 stitches / cm, between about 0.2 and about 5.5 stitches / cm, between about 0.2 and about 5.0 stitches / cm, between about 0.2 and about 4.5 stitches / cm, between about 0.2 and about 4.0 stitches / cm, between about 0.2 and about 3.5 stitches / cm, between about 0.2 and about 3.0 stitches / cm, between about 0.2 and about 2.5 stitches / cm, between about 0.2 and about 2.0 stitches / cm, between about 0.2 and about 1.5 stitches / cm, between about 0.2 and about 1.0 stitches / cm, between about 0.2 and about 0.8 stitches / cm, between about 0.2 and about 0.6 stitches / cm, or between about 0.2 and about 0.4 stitches / cm.

[0291] The second surface has a stitch count of between about 0.4 and about 15.0 stitches / cm, between about 0.4 and about 14.5 stitches / cm, between about 0.4 and about 14.0 stitches / cm, between about 0.4 and about 13.5 stitches / cm, between about 0.4 and about 13.0 stitches / cm, between about 0.4 and about 12.5 stitches / cm, between about 0.4 and about 12.0 stitches / cm, between about 0.4 and about 11.5 stitches / cm, between about 0.4 and about 11.0 stitches / cm, between about 0.4 and about 10.5 stitches / cm, between about 0.4 and about 10.0 stitches / cm, between about 0.4 and about 9.5 stitches / cm, between about 0.4 and about 9.0 stitches / cm, between about 0.4 and about 8.5 stitches / cm, between about 0.4 and about 8.0 stitches / cm, between about 0.4 and about 7.5 The warp stitches may be between about 0.4 and about 7.0 stitches / cm, between about 0.4 and about 6.5 stitches / cm, between about 0.4 and about 6.0 stitches / cm, between about 0.4 and about 5.5 stitches / cm, between about 0.4 and about 5.0 stitches / cm, between about 0.4 and about 4.5 stitches / cm, between about 0.4 and about 4.0 stitches / cm, between about 0.4 and about 3.5 stitches / cm, between about 0.4 and about 3.0 stitches / cm, between about 0.4 and about 2.5 stitches / cm, between about 0.4 and about 2.0 stitches / cm, between about 0.4 and about 1.5 stitches / cm, between about 0.4 and about 1.0 stitches / cm, between about 0.4 and about 0.8 stitches / cm, or between about 0.4 and about 0.6 stitches / cm.

[0292] The second surface has a stitch count of between about 0.6 and about 15.0 stitches / cm, between about 0.6 and about 14.5 stitches / cm, between about 0.6 and about 14.0 stitches / cm, between about 0.6 and about 13.5 stitches / cm, between about 0.6 and about 13.0 stitches / cm, between about 0.6 and about 12.5 stitches / cm, between about 0.6 and about 12.0 stitches / cm, between about 0.6 and about 11.5 stitches / cm, between about 0.6 and about 11.0 stitches / cm, between about 0.6 and about 10.5 stitches / cm, between about 0.6 and about 10.0 stitches / cm, between about 0.6 and about 9.5 stitches / cm, between about 0.6 and about 9.0 stitches / cm, between about 0.6 and about 8.5 stitches / cm, and between about 0.6 and about 8.0 stitches / cm. , between about 0.6 and about 7.5 stitches / cm, between about 0.6 and about 7.0 stitches / cm, between about 0.6 and about 6.5 stitches / cm, between about 0.6 and about 6.0 stitches / cm, between about 0.6 and about 5.5 stitches / cm, between about 0.6 and about 5.0 stitches / cm, between about 0.6 and about 4.5 stitches / cm, between about 0.6 and about 4.0 stitches / cm, between about 0.6 and about 3.5 stitches / cm, between about 0.6 and about 3.0 stitches / cm, between about 0.6 and about 2.5 stitches / cm, between about 0.6 and about 2.0 stitches / cm, between about 0.6 and about 1.5 stitches / cm, between about 0.6 and about 1.0 stitches / cm, or between about 0.6 and about 0.8 stitches / cm.

[0293] The second surface has a stitch count of between about 0.8 and about 15.0 stitches / cm, between about 0.8 and about 14.5 stitches / cm, between about 0.8 and about 14.0 stitches / cm, between about 0.8 and about 13.5 stitches / cm, between about 0.8 and about 13.0 stitches / cm, between about 0.8 and about 12.5 stitches / cm, between about 0.8 and about 12.0 stitches / cm, between about 0.8 and about 11.5 stitches / cm, between about 0.8 and about 11.0 stitches / cm, between about 0.8 and about 10.5 stitches / cm, between about 0.8 and about 10.0 stitches / cm, between about 0.8 and about 9.5 stitches / cm, between about 0.8 and about 9.0 stitches / cm, between about 0.8 and about 8.5 stitches / cm, between about 0.8 and about 8.0 The warp stitches may be between about 0.8 and about 7.5 stitches / cm, between about 0.8 and about 7.0 stitches / cm, between about 0.8 and about 6.5 stitches / cm, between about 0.8 and about 6.0 stitches / cm, between about 0.8 and about 5.5 stitches / cm, between about 0.8 and about 5.0 stitches / cm, between about 0.8 and about 4.5 stitches / cm, between about 0.8 and about 4.0 stitches / cm, between about 0.8 and about 3.5 stitches / cm, between about 0.8 and about 3.0 stitches / cm, between about 0.8 and about 2.5 stitches / cm, between about 0.8 and about 2.0 stitches / cm, between about 0.8 and about 1.5 stitches / cm, or between about 0.8 and about 1.0 stitch / cm.

[0294] The second surface has a stitch count of between about 1.0 and about 15.0 stitches / cm, between about 1.0 and about 14.5 stitches / cm, between about 1.0 and about 14.0 stitches / cm, between about 1.0 and about 13.5 stitches / cm, between about 1.0 and about 13.0 stitches / cm, between about 1.0 and about 12.5 stitches / cm, between about 1.0 and about 12.0 stitches / cm, between about 1.0 and about 11.5 stitches / cm, between about 1.0 and about 11.0 stitches / cm, between about 1.0 and about 10.5 stitches / cm, between about 1.0 and about 10.0 stitches / cm, between about 1.0 and about 9.5 stitches / cm, between about 1.0 and about 9.0 stitches / cm, and between about 1.0 and about 8.5 stitches / cm. , between about 1.0 and about 8.0 stitches / cm, between about 1.0 and about 7.5 stitches / cm, between about 1.0 and about 7.0 stitches / cm, between about 1.0 and about 6.5 stitches / cm, between about 1.0 and about 6.0 stitches / cm, between about 1.0 and about 5.5 stitches / cm, between about 1.0 and about 5.0 stitches / cm, between about 1.0 and about 4.5 stitches / cm, between about 1.0 and about 4.0 stitches / cm, between about 1.0 and about 3.5 stitches / cm, between about 1.0 and about 3.0 stitches / cm, between about 1.0 and about 2.5 stitches / cm, between about 1.0 and about 2.0 stitches / cm, or between about 1.0 and about 1.5 stitches / cm.

[0295] The second surface has a stitch count of between about 1.5 and about 15.0 stitches / cm, between about 1.5 and about 14.5 stitches / cm, between about 1.5 and about 14.0 stitches / cm, between about 1.5 and about 13.5 stitches / cm, between about 1.5 and about 13.0 stitches / cm, between about 1.5 and about 12.5 stitches / cm, between about 1.5 and about 12.0 stitches / cm, between about 1.5 and about 11.5 stitches / cm, between about 1.5 and about 11.0 stitches / cm, between about 1.5 and about 10.5 stitches / cm, between about 1.5 and about 10.0 stitches / cm, between about 1.5 and about 9.5 stitches / cm, between about 1.5 and about 9.0 stitches / cm, between about 1.5 and about 8.5 The warp stitches may be between about 1.5 and about 8.0 stitches / cm, between about 1.5 and about 7.5 stitches / cm, between about 1.5 and about 7.0 stitches / cm, between about 1.5 and about 6.5 stitches / cm, between about 1.5 and about 6.0 stitches / cm, between about 1.5 and about 5.5 stitches / cm, between about 1.5 and about 5.0 stitches / cm, between about 1.5 and about 4.5 stitches / cm, between about 1.5 and about 4.0 stitches / cm, between about 1.5 and about 3.5 stitches / cm, between about 1.5 and about 3.0 stitches / cm, between about 1.5 and about 2.5 stitches / cm, or between about 1.5 and about 2.0 stitches / cm.

[0296] The second surface has a stitch count of between about 2.0 and about 15.0 stitches / cm, between about 2.0 and about 14.5 stitches / cm, between about 2.0 and about 14.0 stitches / cm, between about 2.0 and about 13.5 stitches / cm, between about 2.0 and about 13.0 stitches / cm, between about 2.0 and about 12.5 stitches / cm, between about 2.0 and about 12.0 stitches / cm, between about 2.0 and about 11.5 stitches / cm, between about 2.0 and about 11.0 stitches / cm, between about 2.0 and about 10.5 stitches / cm, between about 2.0 and about 10.0 stitches / cm, between about 2.0 and about 9.5 stitches / cm, between about 2.0 and about 9.0 stitches / cm, The warp stitches may be between about 2.0 and about 8.5 stitches / cm, between about 2.0 and about 8.0 stitches / cm, between about 2.0 and about 7.5 stitches / cm, between about 2.0 and about 7.0 stitches / cm, between about 2.0 and about 6.5 stitches / cm, between about 2.0 and about 6.0 stitches / cm, between about 2.0 and about 5.5 stitches / cm, between about 2.0 and about 5.0 stitches / cm, between about 2.0 and about 4.5 stitches / cm, between about 2.0 and about 4.0 stitches / cm, between about 2.0 and about 3.5 stitches / cm, between about 2.0 and about 3.0 stitches / cm, or between about 2.0 and about 2.5 stitches / cm.

[0297] The second surface has a stitch count of between about 2.5 and about 15.0 stitches / cm, between about 2.5 and about 14.5 stitches / cm, between about 2.5 and about 14.0 stitches / cm, between about 2.5 and about 13.5 stitches / cm, between about 2.5 and about 13.0 stitches / cm, between about 2.5 and about 12.5 stitches / cm, between about 2.5 and about 12.0 stitches / cm, between about 2.5 and about 11.5 stitches / cm, between about 2.5 and about 11.0 stitches / cm, between about 2.5 and about 10.5 stitches / cm, between about 2.5 and about 10.0 stitches / cm, between about 2.5 and about 9.5 stitches / cm, between about 2.5 and about 9.0 The warp stitches may be between about 2.5 and about 8.5 stitches / cm, between about 2.5 and about 8.0 stitches / cm, between about 2.5 and about 7.5 stitches / cm, between about 2.5 and about 7.0 stitches / cm, between about 2.5 and about 6.5 stitches / cm, between about 2.5 and about 6.0 stitches / cm, between about 2.5 and about 5.5 stitches / cm, between about 2.5 and about 5.0 stitches / cm, between about 2.5 and about 4.5 stitches / cm, between about 2.5 and about 4.0 stitches / cm, between about 2.5 and about 3.5 stitches / cm, or between about 2.5 and about 3.0 stitches / cm.

[0298] The second surface has stitches between about 3.0 and about 15.0, between about 3.0 and about 14.5, between about 3.0 and about 14.0, between about 3.0 and about 13.5, between about 3.0 and about 13.0, between about 3.0 and about 12.5, between about 3.0 and about 12.0, between about 3.0 and about 11.5, between about 3.0 and about 11.0, between about 3.0 and about 10.5, between about 3.0 and about 10.0, and between about 3.0 and about 9.5. , between about 3.0 and about 9.0 stitches / cm, between about 3.0 and about 8.5 stitches / cm, between about 3.0 and about 8.0 stitches / cm, between about 3.0 and about 7.5 stitches / cm, between about 3.0 and about 7.0 stitches / cm, between about 3.0 and about 6.5 stitches / cm, between about 3.0 and about 6.0 stitches / cm, between about 3.0 and about 5.5 stitches / cm, between about 3.0 and about 5.0 stitches / cm, between about 3.0 and about 4.5 stitches / cm, between about 3.0 and about 4.0 stitches / cm, or between about 3.0 and about 3.5 stitches / cm.

[0299] The second surface has a stitch length of between about 3.5 and about 15.0 stitches / cm, between about 3.5 and about 14.5 stitches / cm, between about 3.5 and about 14.0 stitches / cm, between about 3.5 and about 13.5 stitches / cm, between about 3.5 and about 13.0 stitches / cm, between about 3.5 and about 12.5 stitches / cm, between about 3.5 and about 12.0 stitches / cm, between about 3.5 and about 11.5 stitches / cm, between about 3.5 and about 11.0 stitches / cm, between about 3.5 and about 10.5 stitches / cm, between about 3.5 and about 10.0 stitches / cm, between about 3.5 and about 9.5 The warp stitches may be between about 3.5 and about 9.0 stitches / cm, between about 3.5 and about 8.5 stitches / cm, between about 3.5 and about 8.0 stitches / cm, between about 3.5 and about 7.5 stitches / cm, between about 3.5 and about 7.0 stitches / cm, between about 3.5 and about 6.5 stitches / cm, between about 3.5 and about 6.0 stitches / cm, between about 3.5 and about 5.5 stitches / cm, between about 3.5 and about 5.0 stitches / cm, between about 3.5 and about 4.5 stitches / cm, or between about 3.5 and about 4.0 stitches / cm.

[0300] The second surface has stitches between about 4.0 and about 15.0, between about 4.0 and about 14.5, between about 4.0 and about 14.0, between about 4.0 and about 13.5, between about 4.0 and about 13.0, between about 4.0 and about 12.5, between about 4.0 and about 12.0, between about 4.0 and about 11.5, between about 4.0 and about 11.0, between about 4.0 and about 10.5, and between about 4.0 and about 10.0. , between about 4.0 and about 9.5 stitches / cm, between about 4.0 and about 9.0 stitches / cm, between about 4.0 and about 8.5 stitches / cm, between about 4.0 and about 8.0 stitches / cm, between about 4.0 and about 7.5 stitches / cm, between about 4.0 and about 7.0 stitches / cm, between about 4.0 and about 6.5 stitches / cm, between about 4.0 and about 6.0 stitches / cm, between about 4.0 and about 5.5 stitches / cm, between about 4.0 and about 5.0 stitches / cm, or between about 4.0 and about 4.5 stitches / cm.

[0301] The second surface has a stitch count of between about 4.5 and about 15.0 stitches / cm, between about 4.5 and about 14.5 stitches / cm, between about 4.5 and about 14.0 stitches / cm, between about 4.5 and about 13.5 stitches / cm, between about 4.5 and about 13.0 stitches / cm, between about 4.5 and about 12.5 stitches / cm, between about 4.5 and about 12.0 stitches / cm, between about 4.5 and about 11.5 stitches / cm, between about 4.5 and about 11.0 stitches / cm, between about 4.5 and about 10.5 stitches / cm, between about 4.5 and about 10.0 The warp stitches may be between about 4.5 and about 9.5 stitches / cm, between about 4.5 and about 9.0 stitches / cm, between about 4.5 and about 8.5 stitches / cm, between about 4.5 and about 8.0 stitches / cm, between about 4.5 and about 7.5 stitches / cm, between about 4.5 and about 7.0 stitches / cm, between about 4.5 and about 6.5 stitches / cm, between about 4.5 and about 6.0 stitches / cm, between about 4.5 and about 5.5 stitches / cm, or between about 4.5 and about 5.0 stitches / cm.

[0302] The second surface has a stitching density of between about 5.0 and about 15.0 stitches / cm, between about 5.0 and about 14.5 stitches / cm, between about 5.0 and about 14.0 stitches / cm, between about 5.0 and about 13.5 stitches / cm, between about 5.0 and about 13.0 stitches / cm, between about 5.0 and about 12.5 stitches / cm, between about 5.0 and about 12.0 stitches / cm, between about 5.0 and about 11.5 stitches / cm, between about 5.0 and about 11.0 stitches / cm, between about 5.0 and about 10.5 stitches / cm, The warp stitches may be between about 5.0 and about 10.0 stitches / cm, between about 5.0 and about 9.5 stitches / cm, between about 5.0 and about 9.0 stitches / cm, between about 5.0 and about 8.5 stitches / cm, between about 5.0 and about 8.0 stitches / cm, between about 5.0 and about 7.5 stitches / cm, between about 5.0 and about 7.0 stitches / cm, between about 5.0 and about 6.5 stitches / cm, between about 5.0 and about 6.0 stitches / cm, or between about 5.0 and about 5.5 stitches / cm.

[0303] The second surface has a stitch count of between about 5.5 and about 15.0 stitches / cm, between about 5.5 and about 14.5 stitches / cm, between about 5.5 and about 14.0 stitches / cm, between about 5.5 and about 13.5 stitches / cm, between about 5.5 and about 13.0 stitches / cm, between about 5.5 and about 12.5 stitches / cm, between about 5.5 and about 12.0 stitches / cm, between about 5.5 and about 11.5 stitches / cm, between about 5.5 and about 11.0 stitches / cm, between about 5.5 and about 10.5 stitches / cm. The warp stitches may be between about 5.5 and about 10.0 stitches / cm, between about 5.5 and about 9.5 stitches / cm, between about 5.5 and about 9.0 stitches / cm, between about 5.5 and about 8.5 stitches / cm, between about 5.5 and about 8.0 stitches / cm, between about 5.5 and about 7.5 stitches / cm, between about 5.5 and about 7.0 stitches / cm, between about 5.5 and about 6.5 stitches / cm, or between about 5.5 and about 6.0 stitches / cm.

[0304] The second surface has a stitch count of between about 6.0 and about 15.0 stitches / cm, between about 6.0 and about 14.5 stitches / cm, between about 6.0 and about 14.0 stitches / cm, between about 6.0 and about 13.5 stitches / cm, between about 6.0 and about 13.0 stitches / cm, between about 6.0 and about 12.5 stitches / cm, between about 6.0 and about 12.0 stitches / cm, between about 6.0 and about 11.5 stitches / cm, between about 6.0 and about 11.0 stitches / cm, The warp stitches may be between 6.0 and about 10.5 stitches / cm, between about 6.0 and about 10.0 stitches / cm, between about 6.0 and about 9.5 stitches / cm, between about 6.0 and about 9.0 stitches / cm, between about 6.0 and about 8.5 stitches / cm, between about 6.0 and about 8.0 stitches / cm, between about 6.0 and about 7.5 stitches / cm, between about 6.0 and about 7.0 stitches / cm, or between about 6.0 and about 6.5 stitches / cm.

[0305] The second surface has a stitch count of between about 6.5 and about 15.0 stitches / cm, between about 6.5 and about 14.5 stitches / cm, between about 6.5 and about 14.0 stitches / cm, between about 6.5 and about 13.5 stitches / cm, between about 6.5 and about 13.0 stitches / cm, between about 6.5 and about 12.5 stitches / cm, between about 6.5 and about 12.0 stitches / cm, between about 6.5 and about 11.5 stitches / cm, between about 6.5 and about 11.0 stitches / cm. The warp stitches may be between about 6.5 and about 10.5 stitches / cm, between about 6.5 and about 10.0 stitches / cm, between about 6.5 and about 9.5 stitches / cm, between about 6.5 and about 9.0 stitches / cm, between about 6.5 and about 8.5 stitches / cm, between about 6.5 and about 8.0 stitches / cm, between about 6.5 and about 7.5 stitches / cm, or between about 6.5 and about 7.0 stitches / cm.

[0306] The second surface may comprise warp stitches between about 7.0 and about 15.0 stitches / cm, between about 7.0 and about 14.5 stitches / cm, between about 7.0 and about 14.0 stitches / cm, between about 7.0 and about 13.5 stitches / cm, between about 7.0 and about 13.0 stitches / cm, between about 7.0 and about 12.5 stitches / cm, between about 7.0 and about 12.0 stitches / cm, between about 7.0 and about 11.5 stitches / cm, between about 7.0 and about 11.0 stitches / cm, between about 7.0 and about 10.5 stitches / cm, between about 7.0 and about 10.0 stitches / cm, between about 7.0 and about 9.5 stitches / cm, between about 7.0 and about 9.0 stitches / cm, between about 7.0 and about 8.5 stitches / cm, between about 7.0 and about 8.0 stitches / cm, or between about 7.0 and about 7.5 stitches / cm.

[0307] The second surface may comprise warp stitches between about 7.5 and about 15.0 stitches / cm, between about 7.5 and about 14.5 stitches / cm, between about 7.5 and about 14.0 stitches / cm, between about 7.5 and about 13.5 stitches / cm, between about 7.5 and about 13.0 stitches / cm, between about 7.5 and about 12.5 stitches / cm, between about 7.5 and about 12.0 stitches / cm, between about 7.5 and about 11.5 stitches / cm, between about 7.5 and about 11.0 stitches / cm, between about 7.5 and about 10.5 stitches / cm, between about 7.5 and about 10.0 stitches / cm, between about 7.5 and about 9.5 stitches / cm, between about 7.5 and about 9.0 stitches / cm, between about 7.5 and about 8.5 stitches / cm, or between about 7.5 and about 8.0 stitches / cm.

[0308] The second surface may comprise warp stitches between about 8.0 and about 15.0 stitches / cm, between about 8.0 and about 14.5 stitches / cm, between about 8.0 and about 14.0 stitches / cm, between about 8.0 and about 13.5 stitches / cm, between about 8.0 and about 13.0 stitches / cm, between about 8.0 and about 12.5 stitches / cm, between about 8.0 and about 12.0 stitches / cm, between about 8.0 and about 11.5 stitches / cm, between about 8.0 and about 11.0 stitches / cm, between about 8.0 and about 10.5 stitches / cm, between about 8.0 and about 10.0 stitches / cm, between about 8.0 and about 9.5 stitches / cm, between about 8.0 and about 9.0 stitches / cm, or between about 8.0 and about 8.5 stitches / cm.

[0309] The second surface may comprise warp stitches between about 8.5 and about 15.0 stitches / cm, between about 8.5 and about 14.5 stitches / cm, between about 8.5 and about 14.0 stitches / cm, between about 8.5 and about 13.5 stitches / cm, between about 8.5 and about 13.0 stitches / cm, between about 8.5 and about 12.5 stitches / cm, between about 8.5 and about 12.0 stitches / cm, between about 8.5 and about 11.5 stitches / cm, between about 8.5 and about 11.0 stitches / cm, between about 8.5 and about 10.5 stitches / cm, between about 8.5 and about 10.0 stitches / cm, between about 8.5 and about 9.5 stitches / cm, or between about 8.5 and about 9.0 stitches / cm.

[0310] The second surface may include warp stitches between about 9.0 and about 15.0 stitches / cm, between about 9.0 and about 14.5 stitches / cm, between about 9.0 and about 14.0 stitches / cm, between about 9.0 and about 13.5 stitches / cm, between about 9.0 and about 13.0 stitches / cm, between about 9.0 and about 12.5 stitches / cm, between about 9.0 and about 12.0 stitches / cm, between about 9.0 and about 11.5 stitches / cm, between about 9.0 and about 11.0 stitches / cm, between about 9.0 and about 10.5 stitches / cm, between about 9.0 and about 10.0 stitches / cm, or between about 9.0 and about 9.5 stitches / cm.

[0311] The second surface may include warp stitches between about 9.5 and about 15.0 stitches / cm, between about 9.5 and about 14.5 stitches / cm, between about 9.5 and about 14.0 stitches / cm, between about 9.5 and about 13.5 stitches / cm, between about 9.5 and about 13.0 stitches / cm, between about 9.5 and about 12.5 stitches / cm, between about 9.5 and about 12.0 stitches / cm, between about 9.5 and about 11.5 stitches / cm, between about 9.5 and about 11.0 stitches / cm, between about 9.5 and about 10.5 stitches / cm, or between about 9.5 and about 10.0 stitches / cm.

[0312] The second surface may include warp stitches between about 10.0 and about 15.0 stitches / cm, between about 10.0 and about 14.5 stitches / cm, between about 10.0 and about 14.0 stitches / cm, between about 10.0 and about 13.5 stitches / cm, between about 10.0 and about 13.0 stitches / cm, between about 10.0 and about 12.5 stitches / cm, between about 10.0 and about 12.0 stitches / cm, between about 10.0 and about 11.5 stitches / cm, between about 10.0 and about 11.0 stitches / cm, or between about 10.0 and about 10.5 stitches / cm.

[0313] The second surface may include warp stitches between about 10.5 and about 15.0 stitches / cm, between about 10.5 and about 14.5 stitches / cm, between about 10.5 and about 14.0 stitches / cm, between about 10.5 and about 13.5 stitches / cm, between about 10.5 and about 13.0 stitches / cm, between about 10.5 and about 12.5 stitches / cm, between about 10.5 and about 12.0 stitches / cm, between about 10.5 and about 11.5 stitches / cm, or between about 10.5 and about 11.0 stitches / cm.

[0314] The second surface may include warp stitches between about 11.0 and about 15.0 stitches / cm, between about 11.0 and about 14.5 stitches / cm, between about 11.0 and about 14.0 stitches / cm, between about 11.0 and about 13.5 stitches / cm, between about 11.0 and about 13.0 stitches / cm, between about 11.0 and about 12.5 stitches / cm, between about 11.0 and about 12.0 stitches / cm, or between about 11.0 and about 11.5 stitches / cm.

[0315] The second surface may include warp stitches between about 11.5 and about 15.0 stitches / cm, between about 11.5 and about 14.5 stitches / cm, between about 11.5 and about 14.0 stitches / cm, between about 11.5 and about 13.5 stitches / cm, between about 11.5 and about 13.0 stitches / cm, between about 11.5 and about 12.5 stitches / cm, or between about 11.5 and about 12.0 stitches / cm.

[0316] The second surface may include warp stitches between about 12.0 and about 15.0 stitches / cm, between about 12.0 and about 14.5 stitches / cm, between about 12.0 and about 14.0 stitches / cm, between about 12.0 and about 13.5 stitches / cm, between about 12.0 and about 13.0 stitches / cm, or between about 12.0 and about 12.5 stitches / cm.

[0317] The second surface may include warp stitches between about 12.5 and about 15.0 stitches / cm, between about 12.5 and about 14.5 stitches / cm, between about 12.5 and about 14.0 stitches / cm, between about 12.5 and about 13.5 stitches / cm, or between about 12.5 and about 13.0 stitches / cm.

[0318] The second surface may include warp stitches between about 13.0 and about 15.0 stitches / cm, between about 13.0 and about 14.5 stitches / cm, between about 13.0 and about 14.0 stitches / cm, or between about 13.0 and about 13.5 stitches / cm.

[0319] The second surface may include warp stitches between about 13.5 and about 15.0 stitches / cm, between about 13.5 and about 14.5 stitches / cm, or between about 13.5 and about 14.0 stitches / cm.

[0320] The second surface may include warp stitches between about 14.0 and about 15.0 stitches / cm, or between about 14.0 and about 14.5 stitches / cm.

[0321] The second surface may include between about 14.5 and about 15.0 warp stitches / cm.

[0322] The first surface may not include any weft stitches. The first surface may include only warp stitches.

[0323] Thus, in one embodiment, there is provided a negative pressure wound dressing comprising a backing layer, an adhesive skin contact layer, and an absorbent structure disposed between the backing layer and the adhesive skin contact layer, wherein the adhesive skin contact layer is configured to removably adhere the dressing to a skin surface, the backing layer includes a connecting component configured to connect the dressing to a negative pressure source, the absorbent structure includes a wound contact layer disposed to contact the wound when the adhesive skin contact layer is adhered to the skin adjacent the wound, the wound contact layer having a first surface and a second surface, the first surface of the wound contact layer contacts the wound in use, the first surface includes warp stitches while the second surface includes warp stitches and weft stitches, and the first surface does not include any weft stitches.

[0324] Advantageously, this means that the amount of non-gelling fibres (which may include weft stitches) at the wound contact surface is minimised. Thus, the wound contact surface that comes into contact with the wound and wound exudate has a greater ratio of gelling fibres to non-gelling fibres. The absorbent capacity of the wound contact layer is therefore increased. As such, the accumulation of wound exudate at the wound site is prevented, or at least significantly reduced.

[0325] Second surface: <15.0 stitches / cm, <14.5 stitches / cm, <14.0 stitches / cm, <13.5 stitches / cm, <13.0 stitches / cm, <12.5 stitches / cm, <12.0 stitches / cm, <11.5 stitches / cm, <11.0 stitches / cm, <10.5 stitches / cm, <10.0 stitches / cm, <9.5 stitches / cm, <9.0 stitches / cm, <8.5 stitches / cm, <8.0 stitches / cm, <7.5 stitches / cm, <7.0 stitches / cm, <6.5 stitches / cm , less than 6.0 stitches / cm, less than 5.5 stitches / cm, less than 5.0 stitches / cm, less than 4.5 stitches / cm, less than 4.0 stitches / cm, less than 3.5 stitches / cm, less than 3.0 stitches / cm, less than 2.5 stitches / cm, less than 2.0 stitches / cm, less than 1.5 stitches / cm, less than 1.0 stitches / cm, less than 0.8 stitches / cm, less than 0.6 stitches / cm, less than 0.5 stitches / cm, less than 0.4 stitches / cm, less than 0.3 stitches / cm, less than 0.2 stitches / cm, or less than 0.1 stitches / cm.

[0326] The second surface has stitches per cm of about 15.0, about 14.5, about 14.0, about 13.5, about 13.0, about 12.5, about 12.0, about 11.5, about 11.0, about 10.5, about 10.0, about 9.5, about 9.0, about 8.5, about 8.0, about 7.5, about 7.0, and about 6.5. , about 6.0 stitches / cm, about 5.5 stitches / cm, about 5.0 stitches / cm, about 4.5 stitches / cm, about 4.0 stitches / cm, about 3.5 stitches / cm, about 3.0 stitches / cm, about 2.5 stitches / cm, about 2.0 stitches / cm, about 1.5 stitches / cm, about 1.0 stitches / cm, about 0.8 stitches / cm, about 0.6 stitches / cm, about 0.5 stitches / cm, about 0.4 stitches / cm, about 0.3 stitches / cm, about 0.2 stitches / cm, or about 0.1 stitches / cm.

[0327] Second surface: 15.0 stitches / cm or less, 14.5 stitches / cm or less, 14.0 stitches / cm or less, 13.5 stitches / cm or less, 13.0 stitches / cm or less, 12.5 stitches / cm or less, 12.0 stitches / cm or less, 11.5 stitches / cm or less, 11.0 stitches / cm or less, 10.5 stitches / cm or less, 10.0 stitches / cm or less, 9.5 stitches / cm or less, 9.0 stitches / cm or less, 8.5 stitches / cm or less, 8.0 stitches / cm or less, 7.5 stitches / cm or less, 7.0 stitches / cm or less, 6.5 stitches / cm or less , 6.0 stitches / cm or less, 5.5 stitches / cm or less, 5.0 stitches / cm or less, 4.5 stitches / cm or less, 4.0 stitches / cm or less, 3.5 stitches / cm or less, 3.0 stitches / cm or less, 2.5 stitches / cm or less, 2.0 stitches / cm or less, 1.5 stitches / cm or less, 1.0 stitches / cm or less, 0.8 stitches / cm or less, 0.6 stitches / cm or less, 0.5 stitches / cm or less, 0.4 stitches / cm or less, 0.3 stitches / cm or less, 0.2 stitches / cm or less, or 0.1 stitches / cm or less.

[0328] The second surface has at least 15.0 stitches / cm, at least 14.5 stitches / cm, at least 14.0 stitches / cm, at least 13.5 stitches / cm, at least 13.0 stitches / cm, at least 12.5 stitches / cm, at least 12.0 stitches / cm, at least 11.5 stitches / cm, at least 11.0 stitches / cm, at least 10.5 stitches / cm, at least 10.0 stitches / cm, at least 9.5 stitches / cm, at least 9.0 stitches / cm, at least 8.5 stitches / cm, at least 8.0 stitches / cm, at least 7.5 stitches / cm, at least 7.0 stitches / cm, at least 6.5 stitches / cm , at least 6.0 stitches / cm, at least 5.5 stitches / cm, at least 5.0 stitches / cm, at least 4.5 stitches / cm, at least 4.0 stitches / cm, at least 3.5 stitches / cm, at least 3.0 stitches / cm, at least 2.5 stitches / cm, at least 2.0 stitches / cm, at least 1.5 stitches / cm, at least 1.0 stitches / cm, at least 0.8 stitches / cm, at least 0.6 stitches / cm, at least 0.5 stitches / cm, at least 0.4 stitches / cm, at least 0.3 stitches / cm, at least 0.2 stitches / cm, or at least 0.1 stitches / cm.

[0329] The second surface may include more weft stitches than the first surface, and may include at least 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, or 20 times the number of weft stitches as the first surface.

[0330] Generally, weft stitching provides transverse strength to the wound contact layer fabric, and therefore advantageously the second surface including weft stitching increases the strength of the wound contact layer fabric in the transverse direction, which prevents or at least significantly reduces the likelihood of separation when the wound contact layer becomes wet with exudate.

[0331] The second surface may not include any weft stitches. The second surface may include only warp stitches.

[0332] The wound contact layer may have a peripheral region and a central region. The peripheral region may completely or at least partially surround the central region. In embodiments including an adhesive skin contact layer that includes a window portion, the central region of the wound contact layer may be disposed within the window portion of the adhesive skin contact layer.

[0333] The first surface may have a peripheral region and a central region. The peripheral region may wholly or at least partially surround the central region.

[0334] The second surface may have a peripheral region and a central region. The peripheral region may wholly or at least partially surround the central region.

[0335] A peripheral region of the first surface may include only warp stitches, and a central region of the first surface may include warp and weft stitches.

[0336] A central region of the first surface may include only warp stitches, and a peripheral region of the first surface may include warp stitches and weft stitches.

[0337] A peripheral region of the second surface may include only warp stitches, and a central region of the second surface may include warp and weft stitches.

[0338] A central region of the second surface may include only warp stitches, and a peripheral region of the second surface may include warp and weft stitches.

[0339] The peripheral and central regions of the second surface may include warp and weft stitches. The peripheral region of the first surface may include only warp stitches, and the central region of the first surface may include warp and weft stitches.

[0340] The peripheral regions of the first and second surfaces may include only warp stitches, and the central regions of the first and second surfaces may include warp and weft stitches.

[0341] The wound contact layer may have a weight of between about 40 gsm and about 250 gsm, between about 40 gsm and about 240 gsm, between about 45 gsm and about 230 gsm, between about 50 gsm and about 220 gsm, between about 55 gsm and about 210 gsm, between about 60 gsm and about 200 gsm, between about 65 gsm and about 190 gsm, between about 70 gsm and about 180 gsm, between about 75 gsm and about 170 gsm, between about 80 gsm and about 160 gsm, between about 85 gsm and about 150 gsm, between about 90 gsm and about 140 gsm, between about 92 gsm and about 130 gsm, between about 94 gsm and about 120 gsm, between about 96 gsm and about 110 gsm, between about 98 gsm and about 105 gsm, or about 100 gsm. Advantageously, the wound contact layer has a weight of between about 40 gsm and about 250 gsm, for example about 100 gsm, meaning that it is strong enough not to degrade in the wound dressing during use, and is not too thick to be processed during manufacture of the wound dressing, for example when the layer is passed through a stitch bonding machine.

[0342] The wound contact layer may be about 40 gsm, about 45 gsm, about 50 gsm, about 55 gsm, about 60 gsm, about 65 gsm, about 70 gsm, about 75 gsm, about 80 gsm, about 85 gsm, about 90 gsm, about 95 gsm, about 100 gsm, about 105 gsm, about 110 gsm, about 115 gsm, about 120 gsm, about 125 gsm, about 130 gsm, about 135 gsm, about 140 gsm, about 145 gsm, about 150 gsm, about 160 gsm, about 170 gsm, about 180 gsm, about 190 gsm, about 200 gsm, about 210 gsm, about 220 gsm, about 230 gsm, about 240 gsm, about 250 gsm, about 260 gsm, about 270 gsm, about 280 gsm, about 290 gsm, about 300 gsm, about 310 gsm, about 320 gsm, about 330 gsm, about 340 gsm, about 350 gsm, about 360 gsm, about 370 gsm, about 380 gsm, about 390 gsm, about 400 gsm, about 410 gsm, about 420 gsm, about 430 gsm, about 440 gsm, about 450 gsm, about 460 gsm, about 470 gsm, about 480 gsm, about 490 gsm, about 50 gsm, about 155 gsm, about 160 gsm, about 165 gsm, about 170 gsm, about 175 gsm, about 180 gsm, about 185 gsm, about 190 gsm, about 195 gsm, about 200 gsm, about 205 gsm, about 210 gsm, about 215 gsm, about 220 gsm, about 225 gsm, about 230 gsm, about 235 gsm, about 240 gsm, about 245 gsm, or about 250 gsm.

[0343] The wound contact layer may be at least about 40 gsm, at least about 45 gsm, at least about 50 gsm, at least about 55 gsm, at least about 60 gsm, at least about 65 gsm, at least about 70 gsm, at least about 75 gsm, at least about 80 gsm, at least about 85 gsm, at least about 90 gsm, at least about 95 gsm, at least about 100 gsm, at least about 105 gsm, at least about 110 gsm, at least about 115 gsm, at least about 120 gsm, at least about 125 gsm, at least about 130 gsm, at least about 135 gsm, at least about 140 gsm, at least about 145 gsm, It may have a weight of at least about 150 gsm, at least about 155 gsm, at least about 160 gsm, at least about 165 gsm, at least about 170 gsm, at least about 175 gsm, at least about 180 gsm, at least about 185 gsm, at least about 190 gsm, at least about 195 gsm, at least about 200 gsm, at least about 205 gsm, at least about 210 gsm, at least about 215 gsm, at least about 220 gsm, at least about 225 gsm, at least about 230 gsm, at least about 235 gsm, at least about 240 gsm, at least about 245 gsm, or at least about 250 gsm.

[0344] The wound contact layer may be about 40 gsm or less, about 45 gsm or less, about 50 gsm or less, about 55 gsm or less, about 60 gsm or less, about 65 gsm or less, about 70 gsm or less, about 75 gsm or less, about 80 gsm or less, about 85 gsm or less, about 90 gsm or less, about 95 gsm or less, about 100 gsm or less, about 105 gsm or less, about 110 gsm or less, about 115 gsm or less, about 120 gsm or less, about 125 gsm or less, about 130 gsm or less, about 135 gsm or less, about 140 gsm or less, about 145 gsm or less, about 15 It may have a weight of 0 gsm or less, about 155 gsm or less, about 160 gsm or less, about 165 gsm or less, about 170 gsm or less, about 175 gsm or less, about 180 gsm or less, about 185 gsm or less, about 190 gsm or less, about 195 gsm or less, about 200 gsm or less, about 205 gsm or less, about 210 gsm or less, about 215 gsm or less, about 220 gsm or less, about 225 gsm or less, about 230 gsm or less, about 235 gsm or less, about 240 gsm or less, about 245 gsm or less, or about 250 gsm or less.

[0345] The wound contact layer may be between about 40 gsm and about 250 gsm, between about 40 gsm and about 240 gsm, between about 40 gsm and about 230 gsm, between about 40 gsm and about 220 gsm, between about 40 gsm and about 210 gsm, between about 40 gsm and about 200 gsm, between about 40 gsm and about 190 gsm, between about 40 gsm and about 180 gsm, between about 40 gsm and about 170 gsm, between about 40 gsm and about 160 gsm, between about 40 gsm and about It may have a weight of between 150 gsm, between about 40 gsm and about 140 gsm, between about 40 gsm and about 130 gsm, between about 40 gsm and about 120 gsm, between about 40 gsm and about 110 gsm, between about 40 gsm and about 100 gsm, between about 40 gsm and about 90 gsm, between about 40 gsm and about 80 gsm, between about 40 gsm and about 70 gsm, between about 40 gsm and about 60 gsm, or between about 40 gsm and about 50 gsm.

[0346] The wound contact layer may be between about 50 gsm and about 250 gsm, between about 50 gsm and about 240 gsm, between about 50 gsm and about 230 gsm, between about 50 gsm and about 220 gsm, between about 50 gsm and about 210 gsm, between about 50 gsm and about 200 gsm, between about 50 gsm and about 190 gsm, between about 50 gsm and about 180 gsm, between about 50 gsm and about 170 gsm, between about 50 gsm and about 160 gsm, It may have a weight between about 50 gsm and about 150 gsm, between about 50 gsm and about 140 gsm, between about 50 gsm and about 130 gsm, between about 50 gsm and about 120 gsm, between about 50 gsm and about 110 gsm, between about 50 gsm and about 100 gsm, between about 50 gsm and about 90 gsm, between about 50 gsm and about 80 gsm, between about 50 gsm and about 70 gsm, or between about 50 gsm and about 60 gsm.

[0347] The wound contact layer may be between about 60 gsm and about 250 gsm, between about 60 gsm and about 240 gsm, between about 60 gsm and about 230 gsm, between about 60 gsm and about 220 gsm, between about 60 gsm and about 210 gsm, between about 60 gsm and about 200 gsm, between about 60 gsm and about 190 gsm, between about 60 gsm and about 180 gsm, between about 60 gsm and about 170 gsm, between about 60 gsm and about 1 It may have a weight of between 60 gsm, between about 60 gsm and about 150 gsm, between about 60 gsm and about 140 gsm, between about 60 gsm and about 130 gsm, between about 60 gsm and about 120 gsm, between about 60 gsm and about 110 gsm, between about 60 gsm and about 100 gsm, between about 60 gsm and about 90 gsm, between about 60 gsm and about 80 gsm, or between about 60 gsm and about 70 gsm.

[0348] The wound contact layer may be between about 70 gsm and about 250 gsm, between about 70 gsm and about 240 gsm, between about 70 gsm and about 230 gsm, between about 70 gsm and about 220 gsm, between about 70 gsm and about 210 gsm, between about 70 gsm and about 200 gsm, between about 70 gsm and about 190 gsm, between about 70 gsm and about 180 gsm, between about 70 gsm and about 170 gsm, between about It may have a weight between 70 gsm and about 160 gsm, between about 70 gsm and about 150 gsm, between about 70 gsm and about 140 gsm, between about 70 gsm and about 130 gsm, between about 70 gsm and about 120 gsm, between about 70 gsm and about 110 gsm, between about 70 gsm and about 100 gsm, between about 70 gsm and about 90 gsm, or between about 70 gsm and about 80 gsm.

[0349] The wound contact layer may be between about 80 gsm and about 250 gsm, between about 80 gsm and about 240 gsm, between about 80 gsm and about 230 gsm, between about 80 gsm and about 220 gsm, between about 80 gsm and about 210 gsm, between about 80 gsm and about 200 gsm, between about 80 gsm and about 190 gsm, between about 80 gsm and about 180 gsm, between about 80 gsm and about 170 gsm, 0 gsm, between about 80 gsm and about 160 gsm, between about 80 gsm and about 150 gsm, between about 80 gsm and about 140 gsm, between about 80 gsm and about 130 gsm, between about 80 gsm and about 120 gsm, between about 80 gsm and about 110 gsm, between about 80 gsm and about 100 gsm, or between about 80 gsm and about 90 gsm.

[0350] The wound contact layer may have a weight of between about 90 gsm and about 250 gsm, between about 90 gsm and about 240 gsm, between about 90 gsm and about 230 gsm, between about 90 gsm and about 220 gsm, between about 90 gsm and about 210 gsm, between about 90 gsm and about 200 gsm, between about 90 gsm and about 190 gsm, between about 90 gsm and about 180 gsm, between about 90 gsm and about 170 gsm, between about 90 gsm and about 160 gsm, between about 90 gsm and about 150 gsm, between about 90 gsm and about 140 gsm, between about 90 gsm and about 130 gsm, between about 90 gsm and about 120 gsm, between about 90 gsm and about 110 gsm, or between about 90 gsm and about 100 gsm.

[0351] The wound contact layer may have a weight of between about 100 gsm and about 250 gsm, between about 100 gsm and about 240 gsm, between about 100 gsm and about 230 gsm, between about 100 gsm and about 220 gsm, between about 100 gsm and about 210 gsm, between about 100 gsm and about 200 gsm, between about 100 gsm and about 190 gsm, between about 100 gsm and about 180 gsm, between about 100 gsm and about 170 gsm, between about 100 gsm and about 160 gsm, between about 100 gsm and about 150 gsm, between about 100 gsm and about 140 gsm, between about 100 gsm and about 130 gsm, between about 100 gsm and about 120 gsm, or between about 100 gsm and about 110 gsm.

[0352] The wound contact layer may have a weight of between about 110 gsm and about 250 gsm, between about 110 gsm and about 240 gsm, between about 110 gsm and about 230 gsm, between about 110 gsm and about 220 gsm, between about 110 gsm and about 210 gsm, between about 110 gsm and about 200 gsm, between about 110 gsm and about 190 gsm, between about 110 gsm and about 180 gsm, between about 110 gsm and about 170 gsm, between about 110 gsm and about 160 gsm, between about 110 gsm and about 150 gsm, between about 110 gsm and about 140 gsm, between about 110 gsm and about 130 gsm, or between about 110 gsm and about 120 gsm.

[0353] The wound contact layer may have a weight of between about 120 gsm and about 250 gsm, between about 120 gsm and about 240 gsm, between about 120 gsm and about 230 gsm, between about 120 gsm and about 220 gsm, between about 120 gsm and about 210 gsm, between about 120 gsm and about 200 gsm, between about 120 gsm and about 190 gsm, between about 120 gsm and about 180 gsm, between about 120 gsm and about 170 gsm, between about 120 gsm and about 160 gsm, between about 120 gsm and about 150 gsm, between about 120 gsm and about 140 gsm, or between about 120 gsm and about 130 gsm.

[0354] The wound contact layer may have a weight of between about 130 gsm and about 250 gsm, between about 130 gsm and about 240 gsm, between about 130 gsm and about 230 gsm, between about 130 gsm and about 220 gsm, between about 130 gsm and about 210 gsm, between about 130 gsm and about 200 gsm, between about 130 gsm and about 190 gsm, between about 130 gsm and about 180 gsm, between about 130 gsm and about 170 gsm, between about 130 gsm and about 160 gsm, between about 130 gsm and about 150 gsm, or between about 130 gsm and about 140 gsm.

[0355] The wound contact layer may have a weight of between about 140 gsm and about 250 gsm, between about 140 gsm and about 240 gsm, between about 140 gsm and about 230 gsm, between about 140 gsm and about 220 gsm, between about 140 gsm and about 210 gsm, between about 140 gsm and about 200 gsm, between about 140 gsm and about 190 gsm, between about 140 gsm and about 180 gsm, between about 140 gsm and about 170 gsm, between about 140 gsm and about 160 gsm, or between about 140 gsm and about 150 gsm.

[0356] The wound contact layer may have a weight of between about 150 gsm and about 250 gsm, between about 150 gsm and about 240 gsm, between about 150 gsm and about 230 gsm, between about 150 gsm and about 220 gsm, between about 150 gsm and about 210 gsm, between about 150 gsm and about 200 gsm, between about 150 gsm and about 190 gsm, between about 150 gsm and about 180 gsm, between about 150 gsm and about 170 gsm, or between about 150 gsm and about 160 gsm.

[0357] The wound contact layer may have a weight of between about 160 gsm and about 250 gsm, between about 160 gsm and about 240 gsm, between about 160 gsm and about 230 gsm, between about 160 gsm and about 220 gsm, between about 160 gsm and about 210 gsm, between about 160 gsm and about 200 gsm, between about 160 gsm and about 190 gsm, between about 160 gsm and about 180 gsm, or between about 160 gsm and about 170 gsm.

[0358] The wound contact layer may have a weight of between about 170 gsm and about 250 gsm, between about 170 gsm and about 240 gsm, between about 170 gsm and about 230 gsm, between about 170 gsm and about 220 gsm, between about 170 gsm and about 210 gsm, between about 170 gsm and about 200 gsm, between about 170 gsm and about 190 gsm, or between about 170 gsm and about 180 gsm.

[0359] The wound contact layer may have a weight of between about 180 gsm and about 250 gsm, between about 180 gsm and about 240 gsm, between about 180 gsm and about 230 gsm, between about 180 gsm and about 220 gsm, between about 180 gsm and about 210 gsm, between about 180 gsm and about 200 gsm, or between about 180 gsm and about 190 gsm.

[0360] The wound contact layer may have a weight of between about 190 gsm and about 250 gsm, between about 190 gsm and about 240 gsm, between about 190 gsm and about 230 gsm, between about 190 gsm and about 220 gsm, between about 190 gsm and about 210 gsm, or between about 190 gsm and about 200 gsm.

[0361] The wound contact layer may have a weight of between about 200 gsm and about 250 gsm, between about 200 gsm and about 240 gsm, between about 200 gsm and about 230 gsm, between about 200 gsm and about 220 gsm, or between about 200 gsm and about 210 gsm.

[0362] The wound contact layer may have a weight of between about 210 gsm and about 250 gsm, between about 210 gsm and about 240 gsm, between about 210 gsm and about 230 gsm, or between about 210 gsm and about 220 gsm.

[0363] The wound contact layer may have a weight of between about 220 gsm and about 250 gsm, between about 220 gsm and about 240 gsm, or between about 220 gsm and about 230 gsm.

[0364] The wound contact layer may have a weight between about 230 gsm and about 250 gsm, or between about 230 gsm and about 240 gsm.

[0365] The wound contact layer may have a weight of between about 240 gsm and about 250 gsm.

[0366] The wound contact layer may have a thickness of between about 1 mm and about 5 mm, between about 1.5 mm and about 4.5 mm, between about 2.0 mm and about 4.0 mm, between about 2.5 mm and about 3.5 mm, or about 3.0 mm.

[0367] The wound contact layer may have a thickness of about 1 mm, about 1.5 mm, about 2.0 mm, about 2.5 mm, about 3.0 mm, about 3.5 mm, about 4.0 mm, about 4.5 mm, or about 5.0 mm.

[0368] The wound contact layer may have a thickness of at least about 1 mm, at least about 1.5 mm, at least about 2.0 mm, at least about 2.5 mm, at least about 3.0 mm, at least about 3.5 mm, at least about 4.0 mm, at least about 4.5 mm, or at least about 5.0 mm.

[0369] The wound contact layer may have a thickness of about 1 mm or less, about 1.5 mm or less, about 2.0 mm or less, about 2.5 mm or less, about 3.0 mm or less, about 3.5 mm or less, about 4.0 mm or less, about 4.5 mm or less, or about 5.0 mm or less.

[0370] The warp stitches included on the first surface may be between about 1.0 mm and about 30.0 mm, between about 1.2 mm and about 28.0 mm, between about 1.4 mm and about 26.0 mm, between about 1.6 mm and about 24.0 mm, between about 1.8 mm and about 22.0 mm, between about 2.0 mm and about 20.0 mm, between about 2.2 mm and about 18.0 mm, between about 2.4 mm and about 16.0 mm, between about 2.6 mm and about 14.0 mm, between about 2.8 mm and about 12.0 mm, between about 3.0 mm and about 10.0 mm, between about 3.2 mm and about 9.6 mm, between about 3.4 mm and about 9.2 mm, between about 3.6 mm and about 8.8 mm, between about 3.8 mm and about 8.4 mm, between about 4.0 mm and about 5.0 mm, between about 5.0 mm and about 6.0 mm, between about 6.0 mm and about 7.0 mm, between about 7.0 mm and about 8.0 mm, between about 7.0 mm and about 9.6 mm, between about 7.0 mm and about 9.2 ... The pitch may be between about 6.0 mm and about 7.0 mm, between about 6.1 mm and about 6.9 mm, between about 6.2 mm and about 6.8 mm, between about 6.3 mm and about 6.7 mm, between about 6.4 mm and about 6.7 mm, between about 6.5 mm and about 6.7 mm, or between about 6.6 mm.

[0371] The warp stitches included on the first surface are approximately 1.0 mm, approximately 1.2 mm, approximately 1.4 mm, approximately 1.6 mm, approximately 1.8 mm, approximately 2.0 mm, approximately 2.2 mm, approximately 2.4 mm, approximately 2.6 mm, approximately 2.8 mm, 3.0 mm, approximately 3.2 mm, approximately 3.4 mm, approximately 3.6 mm, approximately 3.8 mm, approximately 4.0 mm, approximately 4.2 mm, approximately 4.4 mm, and approximately 4.6 mm. , approximately 4.8mm, approximately 5.0mm, approximately 5.2mm, approximately 5.4mm, approximately 5.6mm, approximately 5.8mm, approximately 6.0mm, approximately 6.2mm, approximately 6.4mm, approximately 6.6mm, approximately 6.8mm, approximately 7.0mm, approximately 7.2mm, approximately 7.4mm, approximately 7.6mm, approximately 7.8mm, approximately 8.0mm, approximately 8.2mm, approximately 8.4mm, approximately 8.6mm, approximately 8.8mm, Approximately 9.0mm, approximately 9.2mm, approximately 9.4mm, approximately 9.6mm, approximately 9.8mm, approximately 10.0mm, approximately 10.5mm, approximately 11.0mm, approximately 11.5mm, approximately 12.0mm, approximately 12.5mm, approximately 13.0mm, approximately 13.5mm, approximately 14.0mm, approximately 14.5mm, approximately 15.0mm, approximately 15.5mm, approximately 16.0mm, approximately 16.5mm, approximately The pitch may be 17.0 mm, about 17.5 mm, about 18.0 mm, about 18.5 mm, about 19.0 mm, about 19.5 mm, about 20.0 mm, about 21.0 mm, about 22.0 mm, about 23.0 mm, about 24.0 mm, about 25.0 mm, about 26.0 mm, about 27.0 mm, about 28.0 mm, about 29.0 mm, or about 30.0 mm.

[0372] The warp stitches included on the first surface may be at least about 1.0 mm, at least about 1.2 mm, at least about 1.4 mm, at least about 1.6 mm, at least about 1.8 mm, at least about 2.0 mm, at least about 2.2 mm, at least about 2.4 mm, at least about 2.6 mm, at least about 2.8 mm, 3.0 mm, at least about 3.2 mm, at least about 3.4 mm, at least about 3.6 mm, at least about 3.8 mm, at least about 4.0 mm, at least about 4.2 mm, at least about 4.4 mm, at least about 4.6 mm, at least about 4.8 mm, at least about 5.0 mm, at least about 5.2 mm, at least about 5.4 mm, at least about 5.6 mm, at least about 5.8 mm, at least about 6.0 mm, at least about 6.2 mm, at least about 6.4 mm, at least about 6.6 mm, at least about 6.8 mm, at least about 7.0 mm, at least about 7.2 mm, at least about 7.4 mm, at least about 7.6 mm, at least about 7.8 mm, at least about 8.0 mm, at least about 8.2 mm, at least about 8.4 mm, at least about 8.6 mm, at least about Also about 8.8 mm, at least about 9.0 mm, at least about 9.2 mm, at least about 9.4 mm, at least about 9.6 mm, at least about 9.8 mm, at least about 10.0 mm, at least about 10.5 mm, at least about 11.0 mm, at least about 11.5 mm, at least about 12.0 mm, at least about 12.5 mm, at least about 13.0 mm, at least about 13.5 mm, at least about 14.0 mm, at least about 14.5 mm, at least about 15.0 mm, at least about 15.5 mm, at least about 16.0 mm, The pitch may be about 16.5 mm, at least about 17.0 mm, at least about 17.5 mm, at least about 18.0 mm, at least about 18.5 mm, at least about 19.0 mm, at least about 19.5 mm, at least about 20.0 mm, at least about 21.0 mm, at least about 22.0 mm, at least about 23.0 mm, at least about 24.0 mm, at least about 25.0 mm, at least about 26.0 mm, at least about 27.0 mm, at least about 28.0 mm, at least about 29.0 mm, or at least about 30.0 mm.

[0373] The warp stitches included in the first surface are approximately 1.0 mm or less, approximately 1.2 mm or less, approximately 1.4 mm or less, approximately 1.6 mm or less, approximately 1.8 mm or less, approximately 2.0 mm or less, approximately 2.2 mm or less, approximately 2.4 mm or less, approximately 2.6 mm or less, approximately 2.8 mm or less, 3.0 mm or less, approximately 3.2 mm or less, approximately 3.4 mm or less, approximately 3.6 mm or less, approximately 3.8 mm or less, approximately 4.0 mm or less. approximately 4.2 mm or less, approximately 4.4 mm or less, approximately 4.6 mm or less , about 4.8 mm or less, about 5.0 mm or less, about 5.2 mm or less, about 5.4 mm or less, about 5.6 mm or less, about 5.8 mm or less, about 6.0 mm or less, about 6.2 mm or less, about 6.4 mm or less, about 6.6 mm or less, about 6 .8mm or less, approximately 7.0mm or less, approximately 7.2mm or less, approximately 7.4mm or less, approximately 7.6mm or less, approximately 7.8mm or less, approximately 8.0mm or less, approximately 8.2mm or less, approximately 8.4mm or less, approximately 8.6mm or less, approximately 8.8m m or less, about 9.0 mm or less, about 9.2 mm or less, about 9.4 mm or less, about 9.6 mm or less, about 9.8 mm or less, about 10.0 mm or less, about 10.5 mm or less, about 11.0 mm or less, about 11.5 mm or less, about 12. 0mm or less, approximately 12.5mm or less, approximately 13.0mm or less, approximately 13.5mm or less, approximately 14.0mm or less, approximately 14.5mm or less, approximately 15.0mm or less, approximately 15.5mm or less, approximately 16.0mm or less, approximately 16.5mm The pitch may be about 17.0 mm or less, about 17.5 mm or less, about 18.0 mm or less, about 18.5 mm or less, about 19.0 mm or less, about 19.5 mm or less, about 20.0 mm or less, about 21.0 mm or less, about 22.0 mm or less, about 23.0 mm or less, about 24.0 mm or less, about 25.0 mm or less, about 26.0 mm or less, about 27.0 mm or less, about 28.0 mm or less, about 29.0 mm or less, or about 30.0 mm or less.

[0374] The warp stitches included on the first surface may have a pitch between about 1.0 mm and about 30.0 mm, between about 1.0 mm and about 25.0 mm, between about 1.0 mm and about 20.0 mm, between about 1.0 mm and about 15.0 mm, between about 1.0 mm and about 10.0 mm, between about 1.0 mm and about 8.0 mm, between about 1.0 mm and about 6.0 mm, between about 1.0 mm and about 4.0 mm, or between about 1.0 mm and about 2.0 mm.

[0375] The warp stitches included on the first surface may have a pitch between about 2.0 mm and about 30.0 mm, between about 2.0 mm and about 25.0 mm, between about 2.0 mm and about 20.0 mm, between about 2.0 mm and about 15.0 mm, between about 2.0 mm and about 10.0 mm, between about 2.0 mm and about 8.0 mm, between about 2.0 mm and about 6.0 mm, or between about 2.0 mm and about 4.0 mm.

[0376] The warp stitches included on the first surface may have a pitch between about 4.0 mm and about 30.0 mm, between about 4.0 mm and about 25.0 mm, between about 4.0 mm and about 20.0 mm, between about 4.0 mm and about 15.0 mm, between about 4.0 mm and about 10.0 mm, between about 4.0 mm and about 8.0 mm, or between about 4.0 mm and about 6.0 mm.

[0377] The warp stitches included on the first surface may have a pitch between about 6.0 mm and about 30.0 mm, between about 6.0 mm and about 25.0 mm, between about 6.0 mm and about 20.0 mm, between about 6.0 mm and about 15.0 mm, between about 6.0 mm and about 10.0 mm, or between about 6.0 mm and about 8.0 mm.

[0378] The warp stitches included on the first surface may have a pitch between about 8.0 mm and about 30.0 mm, between about 8.0 mm and about 25.0 mm, between about 8.0 mm and about 20.0 mm, between about 8.0 mm and about 15.0 mm, or between about 8.0 mm and about 10.0 mm.

[0379] The warp stitches included on the first surface may have a pitch between about 10.0 mm and about 30.0 mm, between about 10.0 mm and about 25.0 mm, between about 10.0 mm and about 20.0 mm, or between about 10.0 mm and about 15.0 mm.

[0380] The warp stitches included on the first surface may have a pitch between about 15.0 mm and about 30.0 mm, between about 15.0 mm and about 25.0 mm, or between about 15.0 mm and about 20.0 mm.

[0381] The warp stitches included on the first surface may have a pitch between about 20.0 mm and about 30.0 mm, or between about 20.0 mm and about 25.0 mm.

[0382] The warp stitches on the first surface may have a pitch between about 25.0 mm and about 30.0 mm. The warp stitches on the second surface may have a pitch between about 1.0 mm and about 30.0 mm, between about 1.2 mm and about 28.0 mm, between about 1.4 mm and about 26.0 mm, between about 1.6 mm and about 24.0 mm, between about 1.8 mm and about 22.0 mm, between about 2.0 mm and about 20.0 mm, between about 2.2 mm and about 18.0 mm, between about 2.4 mm and about 16.0 mm, between about 2.6 mm and about 14.0 mm, between about 2.8 mm and about 12.0 mm, between about 3.0 mm and about 10.0 mm, between about 3.2 mm and about 9.6 mm, between about 3.4 mm and about 9.2 mm, between about 3.6 mm and about 8.8 mm, between about 3.8 mm and about 8.4 mm, between about 4.0 mm and about 5.0 mm. The pitch may be between about 6.0 mm and about 7.0 mm, between about 6.1 mm and about 6.9 mm, between about 6.2 mm and about 6.8 mm, between about 6.3 mm and about 6.7 mm, between about 6.4 mm and about 6.7 mm, between about 6.5 mm and about 6.7 mm, or between about 6.6 mm.

[0383] The warp stitches included on the second surface are approximately 1.0 mm, approximately 1.2 mm, approximately 1.4 mm, approximately 1.6 mm, approximately 1.8 mm, approximately 2.0 mm, approximately 2.2 mm, approximately 2.4 mm, approximately 2.6 mm, approximately 2.8 mm, 3.0 mm, approximately 3.2 mm, approximately 3.4 mm, approximately 3.6 mm, approximately 3.8 mm, approximately 4.0 mm, approximately 4.2 mm, approximately 4.4 mm, and approximately 4.6 mm. , approximately 4.8mm, approximately 5.0mm, approximately 5.2mm, approximately 5.4mm, approximately 5.6mm, approximately 5.8mm, approximately 6.0mm, approximately 6.2mm, approximately 6.4mm, approximately 6.6mm, approximately 6.8mm, approximately 7.0mm, approximately 7.2mm, approximately 7.4mm, approximately 7.6mm, approximately 7.8mm, approximately 8.0mm, approximately 8.2mm, approximately 8.4mm, approximately 8.6mm, approximately 8.8mm, approximately 9.0mm, approx. 9.2mm, approx. 9.4mm, approx. 9.6mm, approx. 9.8mm, approx. 10.0mm, approx. 10.5mm, approx. 11.0mm, approx. 11.5mm, approx. 12.0mm, approx. 12.5mm, approx. 13.0mm, approx. 13.5mm, approx. 14.0mm, approx. 14.5mm, approx. 15.0mm, approx. 15.5mm, approx. 16.0mm, approx. 16.5mm, approx. The pitch may be 7.0 mm, about 17.5 mm, about 18.0 mm, about 18.5 mm, about 19.0 mm, about 19.5 mm, about 20.0 mm, about 21.0 mm, about 22.0 mm, about 23.0 mm, about 24.0 mm, about 25.0 mm, about 26.0 mm, about 27.0 mm, about 28.0 mm, about 29.0 mm, or about 30.0 mm or less.

[0384] The warp stitches included on the second surface may be at least about 1.0 mm, at least about 1.2 mm, at least about 1.4 mm, at least about 1.6 mm, at least about 1.8 mm, at least about 2.0 mm, at least about 2.2 mm, at least about 2.4 mm, at least about 2.6 mm, at least about 2.8 mm, 3.0 mm, at least about 3.2 mm, at least about 3.4 mm, at least about 3.6 mm, at least about 3.8 mm, at least about 4.0 mm, at least about 4.2 mm, at least about 4.4 mm, at least about 4.6 mm, at least about 4.8 mm, at least about 5.0 mm, at least about 5.2 mm, at least about 5.4 mm, at least about 5.6 mm, at least about 5.8 mm, at least about 6.0 mm, at least about 6.2 mm, at least about 6.4 mm, at least about 6.6 mm, at least about 6.8 mm, at least about 7.0 mm, at least about 7.2 mm, at least about 7.4 mm, at least about 7.6 mm, at least about 7.8 mm, at least about 8.0 mm, at least about 8.2 mm, at least about 8.4 mm, at least about 8.6 mm, at least about 8.8 mm, at least about 9.0 mm, at least about 9.2 mm, at least about 9.4 mm, at least about 9.6 mm, at least about 9.8 mm, at least about 10.0 mm, at least about 10.5 mm, at least about 11.0 mm, at least about 11.5 mm, at least about 12.0 mm, at least about 12.5 mm, at least about 13.0 mm, at least about 13.5 mm, at least about 14.0 mm, at least about 14.5 mm, at least about 15.0 mm, at least about 15.5 mm, at least about 16.0 mm, and may have a pitch of about 16.5 mm, at least about 17.0 mm, at least about 17.5 mm, at least about 18.0 mm, at least about 18.5 mm, at least about 19.0 mm, at least about 19.5 mm, at least about 20.0 mm, at least about 21.0 mm, at least about 22.0 mm, at least about 23.0 mm, at least about 24.0 mm, at least about 25.0 mm, at least about 26.0 mm, at least about 27.0 mm, at least about 28.0 mm, at least about 29.0 mm, or about 30.0 mm or less.

[0385] The warp stitches included in the second surface are approximately 1.0 mm or less, approximately 1.2 mm or less, approximately 1.4 mm or less, approximately 1.6 mm or less, approximately 1.8 mm or less, approximately 2.0 mm or less, approximately 2.2 mm or less, approximately 2.4 mm or less, approximately 2.6 mm or less, approximately 2.8 mm or less, 3.0 mm or less, approximately 3.2 mm or less, approximately 3.4 mm or less, approximately 3.6 mm or less, approximately 3.8 mm or less, approximately 4.0 mm or less. approximately 4.2 mm or less, approximately 4.4 mm or less, approximately 4.6 mm or less , about 4.8 mm or less, about 5.0 mm or less, about 5.2 mm or less, about 5.4 mm or less, about 5.6 mm or less, about 5.8 mm or less, about 6.0 mm or less, about 6.2 mm or less, about 6.4 mm or less, about 6.6 mm or less, about 6 .8mm or less, approximately 7.0mm or less, approximately 7.2mm or less, approximately 7.4mm or less, approximately 7.6mm or less, approximately 7.8mm or less, approximately 8.0mm or less, approximately 8.2mm or less, approximately 8.4mm or less, approximately 8.6mm or less, approximately 8.8m m or less, about 9.0 mm or less, about 9.2 mm or less, about 9.4 mm or less, about 9.6 mm or less, about 9.8 mm or less, about 10.0 mm or less, about 10.5 mm or less, about 11.0 mm or less, about 11.5 mm or less, about 12. 0mm or less, approximately 12.5mm or less, approximately 13.0mm or less, approximately 13.5mm or less, approximately 14.0mm or less, approximately 14.5mm or less, approximately 15.0mm or less, approximately 15.5mm or less, approximately 16.0mm or less, approximately 16.5mm The pitch may be about 17.0 mm or less, about 17.5 mm or less, about 18.0 mm or less, about 18.5 mm or less, about 19.0 mm or less, about 19.5 mm or less, about 20.0 mm or less, about 21.0 mm or less, about 22.0 mm or less, about 23.0 mm or less, about 24.0 mm or less, about 25.0 mm or less, about 26.0 mm or less, about 27.0 mm or less, about 28.0 mm or less, about 29.0 mm or less, or about 30.0 mm or less.

[0386] The warp stitches included on the second surface may have a pitch between about 1.0 mm and about 30.0 mm, between about 1.0 mm and about 25.0 mm, between about 1.0 mm and about 20.0 mm, between about 1.0 mm and about 15.0 mm, between about 1.0 mm and about 10.0 mm, between about 1.0 mm and about 8.0 mm, between about 1.0 mm and about 6.0 mm, between about 1.0 mm and about 4.0 mm, or between about 1.0 mm and about 2.0 mm.

[0387] The warp stitches included on the second surface may have a pitch between about 2.0 mm and about 30.0 mm, between about 2.0 mm and about 25.0 mm, between about 2.0 mm and about 20.0 mm, between about 2.0 mm and about 15.0 mm, between about 2.0 mm and about 10.0 mm, between about 2.0 mm and about 8.0 mm, between about 2.0 mm and about 6.0 mm, or between about 2.0 mm and about 4.0 mm.

[0388] The warp stitches included on the second surface may have a pitch between about 4.0 mm and about 30.0 mm, between about 4.0 mm and about 25.0 mm, between about 4.0 mm and about 20.0 mm, between about 4.0 mm and about 15.0 mm, between about 4.0 mm and about 10.0 mm, between about 4.0 mm and about 8.0 mm, or between about 4.0 mm and about 6.0 mm.

[0389] The warp stitches included on the second surface may have a pitch between about 6.0 mm and about 30.0 mm, between about 6.0 mm and about 25.0 mm, between about 6.0 mm and about 20.0 mm, between about 6.0 mm and about 15.0 mm, between about 6.0 mm and about 10.0 mm, or between about 6.0 mm and about 8.0 mm.

[0390] The warp stitches included on the second surface may have a pitch between about 8.0 mm and about 30.0 mm, between about 8.0 mm and about 25.0 mm, between about 8.0 mm and about 20.0 mm, between about 8.0 mm and about 15.0 mm, or between about 8.0 mm and about 10.0 mm.

[0391] The warp stitches included on the second surface may have a pitch between about 10.0 mm and about 30.0 mm, between about 10.0 mm and about 25.0 mm, between about 10.0 mm and about 20.0 mm, or between about 10.0 mm and about 15.0 mm.

[0392] The warp stitches included on the second surface may have a pitch between about 15.0 mm and about 30.0 mm, between about 15.0 mm and about 25.0 mm, or between about 15.0 mm and about 20.0 mm.

[0393] The warp stitches included on the second surface may have a pitch between about 20.0 mm and about 30.0 mm, or between about 20.0 mm and about 25.0 mm.

[0394] The warp stitches included on the second surface may have a pitch between about 25.0 mm and about 30.0 mm.

[0395] Advantageously, the pitch of the warp stitches is sufficiently spaced to allow the gelling fibres to be the primary contact surface of the wound contact layer on the wound, and is also narrow enough to maintain wet tensile strength during use, thereby preventing degradation of the wound contact layer when it becomes wet during use.

[0396] In embodiments including a surface having warp and weft stitches, the weft stitches are placed between the warp stitches and are "knotted" to the warp stitches at anchor points. The anchor points may be spaced about 1 mm, about 2 mm, about 3 mm, about 4 mm, about 5 mm, about 6 mm, about 7 mm, about 8 mm, about 9 mm, or about 10 mm apart. The anchor points may be spaced between about 1 mm and about 10 mm, between about 2 mm and about 9 mm, between about 3 mm and about 8 mm, between about 4 mm and about 7 mm, between about 5 mm and about 6.5 mm, or about 6 mm apart.

[0397] The wound contact layer may comprise a plurality of gel-forming fibers. By gel-forming fibers is meant hygroscopic fibers that become wet, slippery, or gelatinous upon absorbing wound exudate. The gel-forming fibers may be of a type that retains structural and fibrous integrity upon absorbing exudate, thereby retaining exceptionally high tensile strength, or may be of a type that loses fibrous integrity and becomes an amorphous or structureless gel. The gel-forming fibers may be sodium carboxymethylcellulose fibers, chemically modified cellulose fibers, alkylsulfonic acid-modified cellulose fibers, pectin fibers, alginate fibers, chitosan fibers, hyaluronic acid fibers, or other polysaccharide fibers, or fibers derived from gums or plants, or combinations or mixtures of these fibers.

[0398] The wound contact layer may comprise a combination or mixture of gelling and non-gelling fibers. The gelling and non-gelling fibers may be any of the fibers disclosed herein. For example, the wound contact layer may comprise a combination or mixture of fibers including gelling fibers, such as fibers formed from sodium carboxymethylcellulose. The wound contact layer may comprise a combination or mixture of fibers including non-gelling fibers, such as cellulose fibers.

[0399] The gelling fibers may be present in the fiber combination or blend in an amount by weight equivalent to about 10%, about 20%, about 30%, about 40%, about 50%, about 60%, about 70%, about 80%, or about 90% of the total weight.

[0400] The gelling fibers may be present in the fiber combination or blend in an amount by weight of at least about 10%, at least about 20%, at least about 30%, at least about 40%, at least about 50%, at least about 60%, at least about 70%, at least about 80%, or at least about 90% of the total weight.

[0401] The gelling fibers may be present in the fiber combination or blend at a weight of about 10% or less, about 20% or less, about 30% or less, about 40% or less, about 50% or less, about 60% or less, about 70% or less, about 80% or less, or about 90% or less of the total weight.

[0402] The gelling fibers may be present in the fiber combination or blend at a weight of between about 5% and about 95%, between about 10% and about 90%, between about 15% and about 85%, between about 20% and about 80%, between about 25% and about 75%, between about 30% and about 70%, between about 35% and about 65%, between about 40% and about 60%, between about 45% and about 55%, or about 50% of the total weight.

[0403] The non-gelling fibers may be present in the fiber combination or blend in an amount by weight equivalent to about 10%, about 20%, about 30%, about 40%, about 50%, about 60%, about 70%, about 80%, or about 90% of the total weight.

[0404] The non-gelling fibers may be present in the fiber combination or blend at a weight of at least about 10%, at least about 20%, at least about 30%, at least about 40%, at least about 50%, at least about 60%, at least about 70%, at least about 80%, or at least about 90% of the total weight.

[0405] The non-gelling fibers may be present in the fiber combination or blend at a weight of about 10% or less, about 20% or less, about 30% or less, about 40% or less, about 50% or less, about 60% or less, about 70% or less, about 80% or less, or about 90% or less of the total weight.

[0406] The non-gelling fibers may be present in the fiber combination or blend at a weight of between about 5% and about 95%, between about 10% and about 90%, between about 15% and about 85%, between about 20% and about 80%, between about 25% and about 75%, between about 30% and about 70%, between about 35% and about 65%, between about 40% and about 60%, between about 45% and about 55%, or about 50% of the total weight.

[0407] The wound contact layer may comprise a combination or blend of fibers comprising sodium carboxymethylcellulose fibers in an amount of about 50% or more by weight of the total fiber combination or blend, and fibers formed from cellulose fibers in an amount of about 50% or less by weight of the total fiber combination or blend. Of the total weight of the fiber combination or blend, the sodium carboxymethylcellulose fibers may be present in an amount of about 55% and about 45% by weight of the cellulose fibers, or about 60% and about 40% by weight of the sodium carboxymethylcellulose fibers, or about 65% and about 35% by weight of the sodium carboxymethylcellulose fibers, or about 70% and about 30% by weight of the sodium carboxymethylcellulose fibers, or about 75% and about 25% by weight of the cellulose fibers, or about 80% and about 20% by weight of the sodium carboxymethylcellulose fibers, or about 85% and about 15% by weight of the sodium carboxymethylcellulose fibers, or about 90% and about 10% by weight of the cellulose fibers, or about 95% and about 5% by weight of the sodium carboxymethylcellulose fibers.

[0408] Combinations or mixtures of gelling and non-gelling fibers may be blended into nonwoven fabrics. The nonwoven fabrics may be stitch-bonded as described herein. In embodiments comprising sodium carboxymethylcellulose fibers, the fibers may have a degree of carboxymethyl group substitution per glucose unit of between about 0.05 and about 0.5, between about 0.10 and about 0.45, between about 0.15 and about 0.40, between about 0.20 and about 0.35, between about 0.25 and about 0.35, or about 0.30.

[0409] Advantageously, this means that the sodium carboxymethylcellulose fibers are relatively more gelatinized, i.e., have a higher absorbency and retention capacity, than fibers commonly found in prior art wound contact layers. This allows the wound contact layer to absorb and retain a greater amount of wound exudate than a wound contact layer that does not contain sodium carboxymethylcellulose fibers, without adversely affecting adhesion to other layers in the absorbent structure. Thus, the accumulation of wound exudate at the wound site is prevented, or at least significantly reduced.

[0410] Moreover, in some embodiments, the first surface has no weft stitching or a relatively small number of weft stitching. Advantageously, in such embodiments, the small or no weft stitching provides a greater area of ​​contact for the gel-forming fibers with the wound than prior art wound dressings that include a wound contact layer with warp and weft stitching on the wound contact surface. Therefore, the wound contact layer of the present invention absorbs substantially more wound exudate than prior art wound contact layers.

[0411] In embodiments comprising sodium carboxymethylcellulose fibers, the fibers may have a degree of substitution of about 0.05, about 0.10, about 0.15, about 0.20, about 0.25, about 0.30, about 0.35, about 0.40, about 0.45, or about 0.50 carboxymethyl groups per glucose unit.

[0412] In embodiments comprising sodium carboxymethylcellulose fibers, the fibers may have a degree of substitution of carboxymethyl groups per glucose unit of at least about 0.05, at least about 0.10, at least about 0.15, at least about 0.20, at least about 0.25, at least about 0.30, at least about 0.35, at least about 0.40, at least about 0.45, or at least about 0.50.

[0413] In embodiments comprising sodium carboxymethylcellulose fibers, the fibers may have a degree of substitution of carboxymethyl groups per glucose unit of about 0.05 or less, about 0.10 or less, about 0.15 or less, about 0.20 or less, about 0.25 or less, about 0.30 or less, about 0.35 or less, about 0.40 or less, about 0.45 or less, or about 0.50 or less.

[0414] In embodiments comprising sodium carboxymethylcellulose fibers, the fibers may have a degree of carboxymethyl group substitution per glucose unit of between about 0.05 and about 0.5, between about 0.05 and about 0.45, between about 0.05 and about 0.40, between about 0.05 and about 0.35, between about 0.05 and about 0.30, between about 0.05 and about 0.25, between about 0.05 and about 0.20, between about 0.05 and about 0.15, or between about 0.05 and about 0.10.

[0415] In embodiments comprising sodium carboxymethylcellulose fibers, the fibers may have a degree of carboxymethyl group substitution per glucose unit of between about 0.10 and about 0.50, between about 0.10 and about 0.45, between about 0.10 and about 0.40, between about 0.10 and about 0.35, between about 0.10 and about 0.30, between about 0.10 and about 0.25, between about 0.10 and about 0.20, or between about 0.10 and about 0.15.

[0416] In embodiments comprising sodium carboxymethylcellulose fibers, the fibers may have a degree of carboxymethyl group substitution per glucose unit of between about 0.15 and about 0.50, between about 0.15 and about 0.4, between about 0.15 and about 0.40, between about 0.15 and about 0.35, between about 0.15 and about 0.30, between about 0.15 and about 0.25, or between about 0.15 and about 0.20.

[0417] In embodiments comprising sodium carboxymethylcellulose fibers, the fibers may have a degree of carboxymethyl group substitution per glucose unit of between about 0.20 and about 0.50, between about 0.20 and about 0.45, between about 0.20 and about 0.40, between about 0.20 and about 0.35, between about 0.20 and about 0.30, or between about 0.20 and about 0.25.

[0418] In embodiments comprising sodium carboxymethylcellulose fibers, the fibers may have a degree of carboxymethyl group substitution per glucose unit of between about 0.25 and about 0.50, between about 0.25 and about 0.45, between about 0.25 and about 0.40, between about 0.25 and about 0.35, or between about 0.25 and about 0.30.

[0419] In embodiments comprising sodium carboxymethylcellulose fibers, the fibers may have a degree of carboxymethyl group substitution per glucose unit of between about 0.30 and about 0.50, between about 0.30 and about 0.45, between about 0.30 and about 0.40, or between about 0.30 and about 0.35.

[0420] In embodiments comprising sodium carboxymethylcellulose fibers, the fibers may have a degree of carboxymethyl group substitution per glucose unit of between about 0.35 and about 0.50, between about 0.35 and about 0.45, or between about 0.35 and about 0.40.

[0421] In embodiments comprising sodium carboxymethylcellulose fibers, the fibers may have a degree of substitution of between about 0.40 and about 0.50, or between about 0.40 and about 0.45, carboxymethyl groups per glucose unit.

[0422] In embodiments comprising sodium carboxymethylcellulose fibers, the fibers may have a degree of substitution of between about 0.45 and about 0.50 carboxymethyl groups per glucose unit.

[0423] The degree of substitution of sodium carboxymethylcellulose fibers can be measured by IR spectroscopy (as defined in WO 00 / 01425).

[0424] In embodiments including sodium carboxymethylcellulose fibers, the fibers may be prepared by carboxymethylating a woven or nonwoven cellulose fabric to increase its absorbency. The woven or nonwoven cellulose fabric may have an absorbency of between about 10 grams (10 g / g) and about 30 grams, between about 15 grams and about 25 grams, between about 15 grams and about 20 grams, or about 18 grams of saline (Solution A, a sodium chloride / calcium chloride solution described below) per gram, as measured by the method described in "Free Swell Absorbent Capacity" (Section 3.2) of "Test Methods for Primary Wound Dressings" (BS EN 13726-1 (2002)). Typically, carboxymethylation is carried out by contacting the fabric with an alkali and a carboxymethylating agent, such as chloroacetic acid, in an aqueous system.

[0425] Solution A, as described in BS EN 13726-1 (2002), consists of a sodium chloride and calcium chloride solution containing 142 mmol of sodium ions and 2.5 mmol of calcium ions as chloride salts. This solution has an ionic composition similar to that of human serum or wound exudate. It is prepared by dissolving 8.298 g of sodium chloride and 0.368 g of calcium chloride dihydrate in deionized water and making up to 1 L in a volumetric flask.

[0426] The wound contact layer may comprise only cellulose fibers. The wound contact layer may also comprise a proportion of non-cellulose textile fibers, gel-forming fibers, or non-gel-forming fibers. The cellulose fibers are of known types and may comprise continuous filament yarns and / or staple fibers. The fabric may comprise fibers woven into a nonwoven fabric.

[0427] The gel-forming fibers may have an absorbency of at least 1 gram of 0.9% saline per gram of fiber (as measured by the free swell method).

[0428] The wound contact layer may be sewn using lyocell yarn, cotton, nylon, polyester, or non-gelling fibers. In particular, the wound contact layer may be sewn using lyocell yarn because this advantageously results in highly aligned cellulose fibers with a high degree of crystallinity and reinforces the cellulose fibers collectively, allowing them to withstand the manufacturing process and providing a strong wound contact layer that does not degrade during use. This also strengthens the absorbent structure of the wound dressing.

[0429] The wound contact layer may be, for example, Hydrofiber® material available from ConvaTec Ltd of Deeside.

[0430] The negative pressure source may be capable of generating a negative pressure at the wound of at least 40 mmHg and at most 200 mmHg, for example 125 mmHg.

[0431] The wound contact layer may comprise multiple layers bonded together, for example, two or more layers of fabric bonded together, such as three, four, five, or six layers. Each layer may have a weight of about 100 gsm or any of the weights defined above. The multiple layers may be bonded together by stitchbonding or lamination. For example, the wound contact layer may comprise two layers each having a weight of 100 gsm stitchbonded together, for a total weight of 200 gsm.

[0432] In embodiments including a wound contact layer including multiple layers, e.g., a first layer and a second layer, each layer may include a first surface and a second surface. The first surface of the first layer is positioned to contact the wound during use. The second surface of the first layer is positioned to face the first surface of the second layer. The second surface of the first layer and the first and second surfaces of the second layer may include warp stitches and weft stitches. The first surface of the first layer may include only warp stitches. The first and second surfaces of the first and second layers may include any of the properties mentioned above, including any optional properties.

[0433] The superabsorbent material may include sodium polyacrylate, which may be a powder, foam, sponge, or fiber.

[0434] Of course, the invention according to the third aspect may individually include any one or more features of the invention according to any other aspect.

[0435] According to yet another broad aspect of the present invention, there is provided a wound dressing including a superabsorbent layer. The wound dressing may be a negative pressure wound dressing. The wound dressing may include a backing layer. The wound dressing may include an adhesive skin contact layer. The wound dressing may include an absorbent structure. The absorbent structure may be disposed between the backing layer and the adhesive skin contact layer. The adhesive skin contact layer may be configured to removably adhere the dressing to a skin surface. The backing layer may include a connecting piece configured to connect the dressing to a negative pressure source. The absorbent structure may include a superabsorbent layer. The superabsorbent layer may include an upper layer and a lower layer. The upper and lower layers may surround a first material including at least one nonwoven fiber, an absorbent material, and a hot melt adhesive.

[0436] According to a fourth aspect of the present invention, there is provided a negative pressure wound dressing comprising a backing layer, an adhesive skin contact layer, and an absorbent structure, wherein the adhesive skin contact layer is configured to removably adhere the dressing to a skin surface, the backing layer comprises a connecting piece configured to connect the dressing to a negative pressure source, the absorbent structure comprises a superabsorbent layer, the superabsorbent layer comprises an upper layer and a lower layer, the upper and lower layers enclosing a first material comprising nonwoven fibers, an absorbent material, and a hot melt adhesive.

[0437] The absorbent structure may be disposed between the backing layer and the adhesive skin-contacting layer.

[0438] Thus, one embodiment provides a negative pressure wound dressing comprising a backing layer, an adhesive skin contact layer, and an absorbent structure disposed between the backing layer and the adhesive skin contact layer, wherein the adhesive skin contact layer is configured to removably adhere the dressing to a skin surface, the backing layer comprises a connecting component configured to connect the dressing to a negative pressure source, the absorbent structure comprises a superabsorbent layer, the superabsorbent layer comprises an upper layer and a lower layer, the upper and lower layers enclosing a first material comprising nonwoven fibers, an absorbent material, and a hot melt adhesive.

[0439] As defined herein, a superabsorbent layer is a layer containing a superabsorbent material that can absorb and retain an amount of at least about 15 g per gram in at least 10 minutes when tested with Solution A (or about 15 g / (g·10 min): about 15 g / g 10 min).

[0440] Advantageously, the synergistic effect of the nonwoven fibers, absorbent material, and hot melt adhesive means that the superabsorbent layer has particularly favorable fluid management capabilities, absorbing and retaining significant volumes of bodily fluid (i.e., wound exudate). Advantageously, testing has shown that the superabsorbent layer has an absorbency of approximately 25 grams per gram and at least about 15 grams per gram in 10 minutes when tested with Solution A, and that under compression (-80 mmHg negative pressure) it has an absorbency of approximately 0.85 g / cm when tested with Solution A. 2 and at least about 0.55 g / cm 2 It has been shown that it has an absorption capacity of

[0441] Furthermore, the superabsorbent layer is flexible enough to easily conform to the contours of the patient's body at the wound site during use, thereby enhancing patient comfort when wearing the wound dressing. In some prior art wound dressings, one or more layers of the wound dressing fail to exhibit the flexibility required to allow the wound dressing to easily conform to the contours of the patient's body. In such cases, the wound dressing may peel off from the patient's body more easily than if it were to conform well to the contours of the patient's body. Furthermore, the superabsorbent layer maintains its structure even when wet or damp, thereby maintaining its strength and integrity within the absorbent structure of the wound dressing and therefore resisting fiber separation and breakage during use.

[0442] Hot melt adhesives are approximately 40 to 100 g / m 2 Between about 45 and about 95 g / m 2 Between about 50 and about 90 g / m 2 Between about 55 and about 85 g / m 2 Between about 60 and about 80 g / m 2 Between about 65 and about 75 g / m 2 Between 70g / m 2 may be present in an amount of

[0443] Hot melt adhesive is approximately 40g / m 2 , about 45g / m 2 , about 50g / m 2 , about 55g / m 2 , about 60g / m 2 , about 65g / m 2 , about 70g / m 2 , about 75g / m 2 , about 80g / m 2 , about 85g / m 2 , about 90g / m 2 , about 95g / m 2 , or about 100 g / m 2 may be present in an amount of

[0444] The hot melt adhesive should have a viscosity of at least about 40 g / m 2 , at least about 45 g / m 2, at least about 50 g / m 2 , at least about 55 g / m 2 , at least about 60 g / m 2 , at least about 65 g / m 2 , at least about 70 g / m 2 , at least about 75 g / m 2 , at least about 80 g / m 2 , at least about 85 g / m 2 , at least about 90 g / m 2 , at least about 95 g / m 2 , or at least about 100 g / m 2 may be present in an amount of

[0445] Hot melt adhesive is approximately 40g / m 2 Below, about 45g / m 2 Below, about 50g / m 2 Below, about 55g / m 2 Below, about 60g / m 2 Below, about 65g / m 2 Below, about 70g / m 2 Below, about 75g / m 2 Below, about 80g / m 2 Below, about 85g / m 2 Below, about 90g / m 2 Below, approximately 95g / m 2 or less, or about 100 g / m 2 It may be present in the following amounts:

[0446] Hot melt adhesives are approximately 40 to 100 g / m 2 Between about 40 and about 95 g / m 2 Between about 40 and about 90 g / m 2 Between about 40 and about 85 g / m 2 Between about 40 and about 80 g / m 2 Between about 40 and about 75 g / m 2 Between about 40 and about 70 g / m 2 Between about 40 and about 65 g / m 2 Between about 40 and about 60 g / m 2 Between about 40 and about 55 g / m 2 Between about 40 and about 50 g / m 2 Between about 40 and about 45 g / m 2It may be present in an amount between

[0447] Hot melt adhesives are approximately 45 to 100 g / m 2 Between about 45 and about 95 g / m 2 Between about 45 and about 90 g / m 2 Between about 45 and about 85 g / m 2 Between about 45 and about 80 g / m 2 Between about 45 and about 75 g / m 2 Between about 45 and about 70 g / m 2 Between about 45 and about 65 g / m 2 Between about 45 and about 60 g / m 2 Between about 45 and about 55 g / m 2 Between about 45 and about 50 g / m 2 It may be present in an amount between

[0448] Hot melt adhesives are approximately 50 to 100 g / m 2 Between about 50 and about 95 g / m 2 Between about 50 and about 90 g / m 2 Between about 50 and about 85 g / m 2 Between about 50 and about 80 g / m 2 Between about 50 and about 75 g / m 2 Between about 50 and about 70 g / m 2 Between about 50 and about 65 g / m 2 Between about 50 and 60 g / m 2 Between about 50 and about 55 g / m 2 It may be present in an amount between

[0449] Hot melt adhesives are approximately 55 to 100 g / m 2 Between about 55 and about 95 g / m 2 Between about 55 and about 90 g / m 2 Between about 55 and about 85 g / m 2 Between about 55 and about 80 g / m 2 Between about 55 and about 75 g / m 2 Between about 55 and about 70 g / m 2 Between about 55 and about 65 g / m 2 Between about 55 and about 60 g / m 2 It may be present in an amount between

[0450] Hot melt adhesives are approximately 60 to 100 g / m 2 Between about 60 and about 95 g / m 2 Between about 60 and about 90 g / m 2 Between about 60 and about 85 g / m 2 Between about 60 and about 80 g / m 2 Between about 60 and about 75 g / m 2 Between about 60 and about 70 g / m 2 Between about 60 and about 65 g / m 2 It may be present in an amount between

[0451] Hot melt adhesives are approximately 65 to 100 g / m 2 Between about 65 and about 95 g / m 2 Between about 65 and about 90 g / m 2 Between about 65 and about 85 g / m 2 Between about 65 and about 80 g / m 2 Between about 65 and about 75 g / m 2 Between about 65 and about 70 g / m 2 It may be present in an amount between

[0452] Hot melt adhesives are approximately 70 to 100 g / m 2 Between about 70 and about 95 g / m 2 Between about 70 and about 90 g / m 2 Between about 70 and about 85 g / m 2 Between about 70 and about 80 g / m 2 Between about 70 and about 75 g / m 2 It may be present in an amount between

[0453] Hot melt adhesives are approximately 75 to 100 g / m 2 Between about 75 and about 95 g / m 2 Between about 75 and about 90 g / m 2 Between about 75 and about 85 g / m 2 Between about 75 and about 80 g / m 2 It may be present in an amount between

[0454] Hot melt adhesive is approximately 80 to 100 g / m 2 Between about 80 and about 95 g / m2 Between about 80 and about 90 g / m 2 Between about 80 and about 85 g / m 2 It may be present in an amount between

[0455] Hot melt adhesive is approximately 85 to 100 g / m 2 Between about 85 and about 95 g / m 2 Between about 85 and about 90 g / m 2 It may be present in an amount between

[0456] Hot melt adhesive is approximately 90 to 100 g / m 2 Between about 90 and about 95 g / m 2 It may be present in an amount between

[0457] Hot melt adhesive is approximately 95 to 100 g / m 2 It may be present in an amount between

[0458] The hot melt adhesive may be a copolymer. The hot melt adhesive may be ethylene vinyl acetate (EVA) or polylactic acid (PLA). In manufacturing the superabsorbent layer, the superabsorbent layer may be heated to melt the hot melt adhesive and bond the nonwoven fibers of the first material together. Advantageously, this prevents, or at least significantly limits, the amount of fiber shedding from the superabsorbent layer during use. Thus, the presence of the hot melt adhesive in the superabsorbent layer significantly increases the strength of the layer and prevents separation of the absorbent structure.

[0459] Advantageously, the hot melt adhesive has a viscosity of about 40 to about 100 g / m 2 , the superabsorbent layer is flexible when dry and yet retains the strength required to hold the absorbent structure together when wet in use. If the hot melt adhesive is present in an amount between 40 g / m 2 If the hot melt adhesive is present in an amount below 100 g / m, the superabsorbent layer will lose its structure when wet and may at least partially separate. 2If present in an amount greater than this, the superabsorbent structure will not be flexible and will be too stiff for the required purpose of using a superabsorbent layer in a wound dressing that requires manipulation with the contours of the user's body.

[0460] The superabsorbent layer may be capable of absorbing exudate from the wound contact layer and may also be capable of allowing the passage of body fluids through the layer.

[0461] The absorbent material may be a superabsorbent material, particularly one that is capable of absorbing wound exudate while allowing bodily fluids to pass through the layer. The superabsorbent material may be a powder, foam, sponge, or fiber-based material. Advantageously, in embodiments where the superabsorbent material is a powder, the absorbency of the superabsorbent material is enhanced by its high surface area to volume ratio.

[0462] The nonwoven fibers may be cellulosic fibers. The cellulosic nonwoven fibers may be arranged as a cellulosic nonwoven matrix of fibers. The cellulosic nonwoven matrix may be a support into which an absorbent material is incorporated, e.g., the absorbent material may be dispersed on the cellulosic nonwoven matrix. The absorbent material may be dispersed evenly or substantially evenly within or on the nonwoven fibers, e.g., the cellulosic nonwoven matrix. The absorbent material may be dispersed evenly or substantially evenly within the nonwoven fibers, e.g., the cellulosic nonwoven matrix.

[0463] Cellulosic nonwoven fabrics may comprise only cellulosic fibers or may contain a proportion of non-cellulosic textile or gel-forming fibers. The cellulosic fibers may include continuous filament yarns and / or staple fibers.

[0464] The nonwoven fibers of the first material may have a low packing density, i.e., be loosely packed. The nonwoven fibers may be arranged in a 3D random fiber orientation. The nonwoven fibers may be cellulosic fibers. An absorbent material, such as a superabsorbent material, e.g., powdered sodium polyacrylate, may be interspersed among the nonwoven fibers of the first material.

[0465] The upper and / or lower layers may include cellulose fibers. The upper and / or lower layers may include, in addition to or instead of cellulose fibers, fibers formed from a hot melt adhesive, such as EVA or PLA. The fibers included in the upper and / or lower layers may have a high packing density, and may have a higher packing density than the fibers of the first material. The fibers included in the upper and / or lower layers may be arranged in a substantially 2D orientation. The fibers included in the upper and / or lower layers may have an ordered orientation, or at least a more ordered orientation than the fibers of the first material. Each of the upper and / or lower layers may be thinner than the first material.

[0466] Advantageously, the first material, the upper layer of the superabsorbent layer, and the lower layer of the superabsorbent layer provide structural integrity to the superabsorbent layer, thereby maintaining the integrity of the superabsorbent layer even when wet, for example, when wet with exudate.

[0467] The first material may comprise gel-forming fibers, which are fibers that become moist, slippery, and / or gelatinous upon absorbing wound exudate, thus reducing the tendency of surrounding fibers to adhere to the wound. The gel-forming fibers may be hygroscopic. Advantageously, the gel-forming fibers prevent, or at least significantly prevent, the superabsorbent layer from adhering to the wound during use, which can be uncomfortable for the patient, especially when the wound dressing is removed for replacement with a fresh one.

[0468] The gel-forming fibers may be of a type that retains its structural integrity upon absorption of bodily fluids (eg, wound exudate), or may be of a type that loses fibrillation and becomes amorphous or structureless.

[0469] The gel-forming fibers may be sodium carboxymethylcellulose fibers, chemically modified cellulose fibers, alkylsulfonic acid-modified cellulose fibers as described in WO 2012 / 061225, pectin fibers, alginate fibers, chitosan fibers, hyaluronic acid fibers, or fibers derived from other polysaccharide fibers or gums. The c...

Claims

1. 1. A negative pressure wound dressing comprising a backing layer, an adhesive skin contact layer, and an absorbent structure disposed between the backing layer and the adhesive skin contact layer, the adhesive skin-contacting layer is configured to removably adhere the dressing to a skin surface; the backing layer includes a coupling element configured to connect the dressing to a negative pressure source; the absorbent structure includes a wound contact layer positioned to contact the wound when the adhesive skin contact layer is adhered to the skin adjacent the wound; the wound contact layer has a first surface and a second surface; the first surface of the wound contact layer contacts the wound in use; the first surface includes warp stitches; The second surface comprises warp stitches and weft stitches.

2. 10. The negative pressure wound dressing of claim 1, wherein the first surface does not include any weft stitches.

3. 3. The negative pressure wound dressing of claim 1 or 2, wherein the second surface comprises weft stitches of at least 1.0 stitches / cm.

4. 4. The negative pressure wound dressing of claim 1, wherein the second surface comprises weft stitches of at least 4.0 stitches / cm.

5. The negative pressure wound dressing of any one of claims 1 to 4, wherein the second surface comprises weft stitches at approximately 7.5 stitches / cm.

6. 10. The negative pressure wound dressing of claim 1, wherein the second surface comprises weft stitches of less than 1.0 stitches / cm.

7. A negative pressure wound dressing according to any preceding claim, wherein the wound contact layer has a weight between 40 gsm and 250 gsm.

8. 8. The negative pressure wound dressing of claim 7, wherein the wound contact layer has a weight between 60 gsm and 200 gsm.

9. A negative pressure wound dressing according to any preceding claim, wherein the wound contact layer has a weight of between 80 gsm and 120 gsm.

10. 10. The negative pressure wound dressing of claim 9, wherein the wound contact layer has a weight of 100 gsm.

11. A negative pressure wound dressing according to any one of claims 1 to 10, wherein the warp stitches included on the first surface and / or the second surface have a pitch between 1.0 mm and 30.0 mm.

12. 12. The negative pressure wound dressing of claim 11, wherein the warp stitches included on the first surface and / or the second surface have a pitch between 6.0 mm and 7.0 mm.

13. 13. A negative pressure wound dressing according to claim 11 or 12, wherein the warp stitches included on the first surface and / or the second surface have a pitch of 6.6 mm.

14. A negative pressure wound dressing according to any preceding claim, wherein the wound contact layer comprises sodium carboxymethylcellulose fibres.

15. 15. The negative pressure wound dressing of claim 14, wherein the sodium carboxymethyl cellulose fibers have a degree of substitution of between 0.25 and 0.35 carboxymethyl groups per glucose unit.

16. 16. The negative pressure wound dressing of claim 15, wherein the sodium carboxymethyl cellulose fibers have a degree of substitution of 0.30 carboxymethyl groups per glucose unit.

17. A negative pressure wound dressing according to any preceding claim, wherein the wound contact layer is sewn using lyocell yarn.

18. A negative pressure wound dressing according to any preceding claim, wherein the wound contact layer comprises multiple layers joined together by stitch bonding or lamination.

19. 20. The negative pressure wound dressing of claim 18, wherein the plurality of layers includes a first layer and a second layer, a first surface of the first layer contacting the wound in use, and the first surface of the first layer not including any weft stitches.

20. 20. The negative pressure wound dressing of claim 19, wherein the second layer comprises a first surface and a second surface, the first surface of the second layer being positioned opposite the second surface of the first layer, and further wherein the second surface of the first layer and the first and second surfaces of the second layer comprise weft stitching.

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