Article of footwear with toe separation and support structure

Abstract

An article of footwear for improving toe separation and support includes a sole and a toe separation system. The sole defines a footbed including a forefoot region, a hindfoot region, and a midfoot region extending between the forefoot region and the hindfoot region. The toe separation system engages the sole and is disposed adjacent to the forefoot region. The toe separation system includes an innermost toe connector, an outermost toe connector, and an adjustment mechanism. The adjustment mechanism is configured to adjust a toe separation distance between the innermost toe connector and the outermost toe connector.

Description

CROSS-REFERENCE TO RELATED APPLICATIONS

[0001] This application claims the benefit of and priority to U.S. Provisional Ser. No. 63 / 748,785 , filed Jan. 23, 2025, the entire contents of which are hereby incorporated by reference herein.BACKGROUND

[0002] The present disclosure relates to articles of footwear that provide a protective and / or supportive covering for the feet.SUMMARY

[0003] One embodiment relates to an article of footwear including a sole and a toe separation system. The sole defines a footbed including a forefoot region, a hindfoot region, and a midfoot region extending between the forefoot region and the hindfoot region. The toe separation system engages the sole and is disposed adjacent to the forefoot region. The toe separation system includes an innermost toe connector, an outermost toe connector, and an adjustment mechanism. The adjustment mechanism is configured to adjust a toe separation distance between the innermost toe connector and the outermost toe connector.

[0004] In some embodiments, each width of the footbed across the forefoot region is greater than each width of the footbed across each of the hindfoot region and the midfoot region.

[0005] In some embodiments, a width of the footbed increases continuously from the hindfoot region through the midfoot region and to the forefoot region.

[0006] In some embodiments, the sole has a triangular shape when viewed from above that defines only three corner regions.

[0007] In some embodiments, the toe separation system includes at least one strap, the innermost toe connector is a first loop of the at least one strap that is configured to wrap around a person's innermost toe, and the outermost toe connector is a second loop of the at least one strap that is configured to wrap around a person's outermost toe.

[0008] In some embodiments, the sole defines a strap opening that extends therethrough, the toe separation system including at least one strap, the innermost toe connector disposed at an end of the at least one strap, and the at least one strap extending through the strap opening.

[0009] In some embodiments, the sole includes: an insole that defines the footbed; and an outsole that is coupled to the insole, where the outsole configured to contact a ground surface, and where the strap opening is a channel that extends in a width direction through the outsole.

[0010] In some embodiments, the toe separation system further includes a strap including a connector, and the adjustment mechanism includes a plurality of mounting studs on a side of the sole. In some such embodiments, the connector is configured to couple to any one of the mounting studs to set the toe separation distance.

[0011] In some such embodiments, the toe separation system further includes a cleat disposed on a side of the sole in the forefoot region, the cleat coupling the strap to the sole and configured to allow relative movement between the strap and the sole along a first direction along a first portion of the strap and along a second direction along a second portion of the strap that is substantially normal to the first direction.

[0012] In some embodiments, the article of footwear further includes a covering coupled to the sole, wherein the covering extending over at least a portion of the midfoot region of the footbed.

[0013] In some embodiments, the toe separation system includes at least one strap, and the adjustment mechanism includes a hook and loop fastener that extends along at least two portions of the at least one strap.

[0014] In some embodiments, the toe separation system support comprises a pair of strap towers that extend from the footbed and disposed on opposing sides of the forefoot region, where the pair of strap towers configured to support a portion of at least one strap above the footbed. In some such implementations, at least one strap tower of the pair of strap towers defines a strap opening that is sized to receive at least one strap therein, and a lower end of the strap opening is spaced apart from the footbed.

[0015] Another embodiment relates to a sole for an article of footwear. The sole defines a footbed including a forefoot region, a hindfoot region and a midfoot region extending between the forefoot region and the hindfoot region. Each width of the footbed across the forefoot region is greater than each width of the footbed across each of the hindfoot region and the midfoot region. The sole further includes a toe separation system support coupled to the footbed adjacent to the forefoot region. The toe separation system support is configured to support a toe separation system at least partially within the forefoot region.

[0016] In some embodiments, the width of the footbed increases continuously from the hindfoot region through the midfoot region and to the forefoot region.

[0017] In some embodiments, the footbed has a triangular shape when viewed from above that defines only three corner regions.

[0018] In some embodiments, the sole defines a strap opening that extends therethrough adjacent to the forefoot region.

[0019] In some embodiments, the sole further includes: an insole that defines the footbed; and an outsole that is coupled to the insole, the outsole configured to contact a ground surface, where the strap opening is a channel that extends in a width direction through the outsole.

[0020] In some embodiments, the toe separation system support includes a cleat disposed on a side of the sole in the forefoot region, the cleat configured to couple a strap to the sole and configured to allow relative movement between the strap and the sole along a first direction along a first portion of the strap and along a second direction along a second portion of the strap that is substantially normal to the first direction.

[0021] In some embodiments, the toe separation system support comprises a pair of strap towers that extend from the footbed and disposed on opposing sides of the forefoot region, where the pair of strap towers configured to support a portion of at least one strap above the footbed. In some such implementations, at least one strap tower of the pair of strap towers defines a strap opening that is sized to receive at least one strap therein, and a lower end of the strap opening is spaced apart from the footbed.

[0022] Yet another embodiment relates to a method of making and / or using an article of footwear. The method includes forming a sole that defines a footbed. The footbed includes a forefoot region, a hindfoot region and a midfoot region extending between the forefoot region and the hindfoot region. The method also includes engaging a toe separation system with the sole adjacent to the forefoot region. The toe separation system includes an innermost toe connector, an outermost toe connector, and an adjustment mechanism configured to adjust a toe separation distance between the innermost toe connector and the outermost toe connector.

[0023] In some embodiments, the method further includes: engaging the innermost toe connector of the toe separation system with an innermost toe; engaging the outermost toe connector of the toe separation system with an outermost toe; and adjusting, by using the adjustment mechanism, the toe separation distance between the innermost toe connector and the outermost toe connector.

[0024] This summary is illustrative only and is not intended to be in any way limiting. Other aspects, inventive features, and advantages of the devices or processes described herein will become apparent in the detailed description set forth herein, taken in conjunction with the accompanying figures, wherein like reference numerals refer to like elements.BRIEF DESCRIPTION OF THE FIGURES

[0025] FIG. 1 is a side view of an article of footwear for improving toe separation, according to an embodiment.

[0026] FIG. 2 is a top view of the article of footwear of FIG. 1.

[0027] FIG. 3 is a top view of a sole of the article of footwear of FIG. 1, according to an embodiment.

[0028] FIG. 4 is a bottom view of the sole of FIG. 3.

[0029] FIG. 5 is a side view of the sole of FIG. 3.

[0030] FIG. 6 is a rear view of the sole of FIG. 3.

[0031] FIG. 7 is a bottom view of a strap system for use with an article of footwear, according to an embodiment.

[0032] FIG. 8 is a side view of the strap system and article of footwear of FIG. 7.

[0033] FIG. 9 is a bottom view of a strap system for use with an article of footwear, according to another embodiment.

[0034] FIG. 10 is a side view of the strap system and article of footwear of FIG. 9.

[0035] FIG. 11 is a bottom view of a strap system for use with an article of footwear, according to yet another embodiment.

[0036] FIG. 12 is a side view of the strap system and article of footwear of FIG. 11.

[0037] FIG. 13 is a side view of an article of footwear for improving toe separation, according to another embodiment.

[0038] FIG. 14 is a perspective view of a sole that may be used as part of the article of footwear of FIG. 13, according to an embodiment.

[0039] FIG. 15 is a top view of a sole of an article of footwear, according to another embodiment.

[0040] FIG. 16 is a top view of a sole of an article of footwear, according to yet another embodiment.

[0041] FIG. 17 is a top view of an article of footwear for improving toe separation, according to another embodiment.

[0042] FIG. 18 is a perspective view of the article of footwear of FIG. 17.

[0043] FIG. 19 is a side view of the article of footwear of FIG. 17.

[0044] FIG. 20 is a top view of an innermost toe connector of a toe separation system for the article of footwear of FIG. 17.

[0045] FIG. 21 is a bottom view of the article of footwear of FIG. 17.

[0046] FIG. 22 is a perspective view of a toe separation system for an article of footwear, according to another embodiment.

[0047] FIG. 23 is a flow diagram of a method of making and using an article of footwear, according to an embodiment.DETAILED DESCRIPTION

[0048] Before turning to the figures, which illustrate certain exemplary embodiments in detail, it should be understood that the present disclosure is not limited to the details or methodology set forth in the description or illustrated in the figures. It should also be understood that the terminology used herein is for the purpose of description only and should not be regarded as limiting.

[0049] Articles of footwear including shoes, sandals, and other foot coverings are intended to protect and comfort a person's foot. Many existing shoes and sandals includes coverings that enclose the foot near a person's toes or include straps that engage the foot near a person's toes and / or along a midfoot region to secure the footwear in position and to prevent the shoe and / or sandal from falling off when worn. These enclosures and / or engaging features can improve protection of various parts of the user's foot. However, in some instances, these features can over constrain the foot which can be detrimental to a user's posture and foot health.

[0050] Embodiments of the present disclosure relate to articles of footwear that support a user's toes in an open position and enable adjustment of the amount of toe separation during use. In some embodiments, the articles of footwear (e.g., shoes, sandals, etc.) include a strap system that is configured to enable a user to control an amount of toe separation. For example, the strap system may be configured to engage a user's innermost and outermost toes to pull the toes apart. The strap system may also include an adjustment mechanism that can be manipulated by a user to adjust the amount of toe separation provided to a user (e.g., a distance between the innermost and outermost toes, a force that pulls the user's toes apart, etc.). In some embodiments, the article of footwear also includes a tapered sole design, which can provide greater clearance for toe separation and support the user's foot in a healthier position.

[0051] The articles of footwear (e.g., sandals, shoes, etc.) described herein are configured to facilitate realignment of the toes and user's body to a more balanced posture. The articles of footwear described herein can improve a user's foot heath and can enhance foot function. For example, by increasing toe separation, the articles of footwear can improve foot stability by providing a wider contact area across the user's feet. Increased toe spread can also increase overall body alignment, such as the alignment between a user's knees and their feet (straighter legs, etc.) when standing. The improvements to stability and body alignment resulting from the user of various articles of footwear described herein can also improve a user's balance and agility during exercise and sporting events. Additionally, and as noted above, the footwear designs described herein can also improve circulation through the feet as well as the strength of the foot muscles, which can reduce the risk of health conditions such as plantar fasciitis and bunions.

[0052] Referring to FIGS. 1-2, an article of footwear, shown as a sandal 100, is shown that is configured to support a user's toes 12 and to facilitate toe separation during use. The sandal 100 is an open foot covering that protects a bottom of the user's foot 10 from a ground surface while exposing a portion of the user's foot 10 and toes 12 to the environment surrounding the sandal 100. In other embodiments, the article of footwear may be a shoe, a boot, or another enclosed or partially enclosed foot covering that at least partially separates a user's foot 10 from the surrounding environment. It should be understood that various types of foot coverings, enclosures, and / or supports may be incorporated in combination with other features of the footwear designs described herein. Such coverings can provide different aesthetics to the footwear and can also enable use of the footwear in various climates and applications.

[0053] The sandal 100 includes a sole 102 and a toe separation system 104. The toe separation system 104 is coupled to the sole 102 adjacent to a region of the sole 102 that is configured to support a user's toes 12. The sandal 100 also includes a covering 106 that is coupled to the sole 102. The covering 106 is configured to secure the user's foot 10 to the sole 102, and to prevent significant flexion of the foot 10 relative to the sole 102, as will be further described.

[0054] The sole 102 is configured to support the user's foot 10 above a ground surface (see also FIGS. 1-2. In some embodiments, the sole 102 includes at least one layer of material between the user's foot 10 and the ground surface. Referring to FIGS. 3-6, the sole 102 includes an insole 108 and an outsole 110. In some embodiments, the insole 108 and the outsole 110 are formed as a monolithic / unitary body from a single piece of material (e.g., rubber, etc.). In other embodiments, the insole 108 and the outsole 110 are formed as separate layers of material that are bonded together via an adhesive material or otherwise coupled together along substantially their entire length to define the sole 102.

[0055] The insole 108 is disposed on, and defines, a first side of the sole 102 that is configured to engage with (e.g., contact) the user's foot 10 (see also FIGS. 1-2). The insole 108 defines a footbed 112 that is configured to extend along the underside of the foot 10. In some embodiments, the insole 108 is contoured to support different portions of the foot 10 at different heights relative to the ground surface (e.g., to provide arch support to the foot 10, etc.).

[0056] Referring to FIG. 3, the footbed 112 (e.g., the insole 108) extends along a first direction 114 (e.g., a longitudinal direction, a length direction, etc.) and a second direction 116 (e.g., a lateral direction, a width direction, etc.) that is normal to the first direction 114. The insole 108 defines a forefoot region 118, a hindfoot region 120, and a midfoot region 122. The forefoot region 118 is disposed at a first end of the footbed 112 in the first direction 114, and is configured to support the toes 12 and a ball of the foot 10 (see also FIG. 1). The hindfoot region 120 is disposed at a second end of the footbed 112 in the first direction 114, and is configured to support a heel of the foot 10. The midfoot region 122 extends between the forefoot region 118 and the hindfoot region 120 (e.g., from the forefoot region 118 to the hindfoot region 120 along the first direction 114). The midfoot region 122 is configured to support a medial portion of the foot 10 between the ball and the heel.

[0057] The footbed 112 is a tapered along the first direction 114 so that a width of the footbed 112, parallel to the second direction 116, increases continuously or semi-continuously from the hindfoot region 120 through the midfoot region 122 and into the forefoot region 118. In the embodiment of FIG. 3, the width of the footbed 112 increases continuously such that each width 124 of the footbed 112 across the forefoot region 118 is greater than each width 126 of the footbed 112 across each of the hindfoot region 120 and the midfoot region 122. The tapered arrangement of the sole 102 forms a triangular shape when viewed from above the footbed 112 (e.g., normal to the first direction 114 and the second direction 116) that consists of only three corner regions 128 (e.g., curved edges, etc.). The triangular shape substantially matches the outer profile of a healthy foot when viewed from above.

[0058] In some embodiments, a maximum width 124a of the forefoot region 118 is within a range between approximately 100 mm and 150 mm (e.g., within a range between 120 mm and 140 mm, approximately 130 mm, or any value between and including the foregoing range, etc.). Such a range can balance the space needed for adequate toe separation for an average person with the overall size of the sole 102.

[0059] Referring to FIG. 4, the outsole 110 is disposed between the insole 108 and the ground surface and extends across the entire surface of the insole 108 in the first direction 114 and the second direction 116. The outsole 110 is configured to cushion the insole 108 from the ground. In some embodiments, the outsole 110 defines at least a portion of a toe separation system support 130 that is configured to support and / or couple the toe separation system 104 to the sole 102 (also see FIG. 1).

[0060] In some embodiments, the toe separation system support 130 includes a strap opening 132 that extends through the insole 108 and / or the outsole 110 adjacent to the forefoot region 118. In the embodiment of FIG. 4, the toe separation system support 130 includes a first strap opening 132a that extends through at least a portion of the outsole 110. The first strap opening 132a is a channel 134 (e.g., a groove, a recessed area, a tunnel, etc.) that extends in the second direction 116 (e.g., the width direction, etc.) through the outsole 110. The channel 134 extends across an entire length of the outsole 110. In the embodiment of FIG. 4, the channel 134 has a rectangular cross-sectional shape when viewed along the second direction 116, which helps to support at least one strap within the channel 134, as will be further described. In other embodiments, the cross-sectional shape of the channel 134 may be different.

[0061] The toe separation system support 130 may include other elements to support the toe separation system 104 along the sole 102 in various embodiments. For example, referring to FIGS. 5-6, the toe separation system support 130 includes a pair of strap towers 136 that are configured to support at least a portion of the toe separation system 104 (e.g., at least one strap, etc.) adjacent to the forefoot region 118 of the footbed 112. The strap towers 136 may be configured to support the portion of the toe separation system 104 in a location that is easy for a user to access and / or to facilitate engagement between the user's toe(s) and the toe separation system 104.

[0062] In the embodiment of FIGS. 5-6, the strap towers 136, shown as a first strap tower 136a and a second strap tower 136b, each have the same structure. In other embodiments, the structure of the strap towers 136 may be different from one another. Each of the strap towers 136 extends upwardly from the footbed 112 in a direction that is substantially normal to the footbed 112. The strap towers 136 are disposed on opposing sides of the forefoot region 118 and are spaced apart from one another by the forefoot region 118 in the second direction 116. The first strap tower 136a and the second strap tower 136b are substantially aligned with one another along the first direction 114. In some embodiments, the strap towers 136 are integrally formed with the sole 102 (e.g., the insole 108, etc.) as a monolithic body from a single piece of material, which can increase the strength and durability of the strap towers 136. In other embodiments, the strap towers 136 may be formed separately from the sole 102 and may be bonded (e.g., adhered, etc.) or mechanically fastened to the sole 102.

[0063] The first strap tower 136a includes a first protrusion 138 (e.g., a first projection, a first merlon, etc.) and a second protrusion 140 (e.g., a second projection, a second merlon, etc.) spaced apart from the first protrusion 138 along the first direction 114. The first protrusion 138 and the second protrusion 140 are triangular-shaped protrusions (when viewed along the second direction 116) that extend upwardly from the footbed 112. In some embodiments, the first strap tower 136a also includes a bridge 142 extending from the first protrusion 138 to the second protrusion 140 of reduced height relative to the first protrusion 138 and the second protrusion 140. In other embodiments, the bridge 142 is defined by an outer perimeter surface of the footbed 112 that is substantially flush with the forefoot region 118. The first protrusion 138, the second protrusion 140, and the bridge 142 together define a strap opening (e.g., a crenel, etc.), shown as a second strap opening 132b.

[0064] In the embodiment of FIGS. 5-6, the second strap opening 132b is sized to receive at least one strap of the toe separation system 104 therein. The second strap opening 132b is spaced apart from the footbed 112. Referring to FIG. 5, the second strap opening 132b is aligned with the first strap opening 132a along the first direction 114. In some embodiments, the first strap opening 132a is symmetric with the second strap opening 132b across a reference plane extending between the first strap opening 132a and the second strap opening 132b. The first strap opening 132a is approximately the same size as the second strap opening 132b.

[0065] In some embodiments, the sole 102 (e.g., the insole 108, the outsole 110, etc.) may be formed to include a bend 144 (e.g., flexion, etc.) at a location near where the forefoot region 118 engages the midfoot region 122. In some embodiments, the bend 144 forms an angle such that an overall end of the midfoot region 122 is elevated above the midfoot region 122 by a height 123 of approximately 50 mm (e.g., 30 mm, 40 mm, 60 mm, or any value or range between and including the foregoing values, etc.). The bend 144 may improve support of a user's toes in a healthier position and can also help to facilitate toe spread during use.

[0066] Referring to FIGS. 7-8, a toe separation system 104 for the sandal 100 is shown that is configured to enable adjustment of a distance between a user's toes. The toe separation system 104 engages the sole 102 at the toe separation system support 130 and is disposed adjacent to the forefoot region 118. The toe separation system support 130 includes an innermost toe connector 146, an outermost toe connector 148, and an adjustment mechanism 150 that is configured to adjust a toe separation distance 14 (see FIG. 2) between the innermost toe connector 146 and the outermost toe connector 148 (see also FIG. 2). Although described herein a an “innermost toe connector” and an “outermost toe connector,” it should be understood that the innermost toe connector may be applied to any first of a user's foot and that the outermost toe connector may be applied any second toe of a user's foot that is different from the first toe, and that the terms “innermost” and “outermost” encompass these various arrangements and should not be considered limiting. For example, in various embodiments, the innermost toe may be an innermost functioning toe of a user's foot (e.g., an innermost toe that is able to bear a lateral load applied to the toe, etc.), and the outermost toe may be an outermost functioning toe. As used herein, the toe separation distance 14 refers to a distance between at least two toes and, in particular, a distance between a center of the user's innermost toe and the user's outermost toe in the second direction 116. In other embodiments, the toe separation system 104 may include additional, fewer, and / or different components.

[0067] In at least one embodiment, the toe separation system 104 includes at least one strap 152 that defines at least a portion of the innermost toe connector 146, the outermost toe connector 148, and / or the adjustment mechanism 150. In the embodiment of FIGS. 7-8, the at least one strap 152 is wrapped around the bottom of the sole 102. The at least one strap 152 extends through both the first strap opening 132a (e.g., the channel 134) and a second strap opening 132b defined by each of the strap towers 136. In some embodiments, the at least one strap 152 is a length of cordage (e.g., a shoelace, etc.) made from leather, cotton, jute, hemp, and / or another material. In the embodiment of FIGS. 7-8, the at least one strap 152 has an elongated cross-sectional shape (e.g., a rectangular-shaped cross-section, etc.) when viewed normal to a central axis thereof having a width that is approximately equal to a width of the channel 134. Such a design can increase the holding force between the at least one strap 152 and the sole 102 and can provide greater surface area of contact between the at least one strap 152 and a user's toes.

[0068] In other embodiments, the innermost toe connector 146 and / or the outermost toe connector 148 are rigid or semi-rigid materials that are coupled to the sole 102 and / or at least one strap, and that are configured to engage (e.g., contact, etc.) the user's toe(s) to enable controlled spacing between adjacent toes. For example, the innermost toe connector 146 and / or the outermost toe connector 148 may include elongated and / or curved tabs (e.g., partition walls, dividers, fins, etc.) that extend upwardly from the footbed 112 within the forefoot region 118. The tab(s) may be configured to engage a user's foot in between adjacent toes. The tab(s) may hook around at least one toe and may be movable relative to the sole 102 to adjust the spacing between adjacent toes. In other embodiments, the innermost toe connector 146 and / or the outermost toe connector 148 may include a ring that is secured to an end of the at least one strap. The ring may be made from silicone, soft plastic, rubber, or another type of material that facilitates gripping of the user's toe(s).

[0069] In the embodiment of FIGS. 7-8, the strap towers 136 support opposing end portions (e.g., loops, etc.) of the at least one strap 152 above the forefoot region 118 of the footbed 112. An intermediate portion of the strap 152, between opposing end portions of the strap 152, is disposed in and extends through the first strap opening 132a.

[0070] In the embodiment of FIGS. 7-8, the innermost toe connector 146 is disposed at a first end 160 of the at least one strap 152 and the outermost toe connector 148 is disposed at a second end 162 of the at least one strap 152 that is opposite the first end 160. The innermost toe connector 146 a first loop 154 of the at least one strap 152 that is configured to wrap around a person's innermost toe 16 (e.g., hallux, first toe, first digit, big toe, etc.)(see also FIG. 2). The first loop 154 is an enclosed portion of the at least one strap 152 that defines a first loophole. The first loop 154 may be formed by wrapping the first end 160 of the strap 152 back onto an intermediate region of the strap 152, between opposing ends of the strap 152 to form a circular loop, and sewing or otherwise connecting the first end to the intermediate portion. The first loophole may be sized to receive a user's innermost toe therein.

[0071] The outermost toe connector 148 is a second loop 156 of the at least one strap 152 that is configured to wrap around a person's outermost toe 18 (e.g., second toe, pinky toe, fifth digit, etc.) (see also FIG. 2). In some embodiments, the second loop 156 is formed in the same or a similar manner as the first loop 154. The second loop 156 is disposed on the second end 162 of the at least one strap 152 opposite the first end 160. The second loop 156 is an enclosed portion of the at least one strap 152 at the second end 162 that defines a second loophole. The second loop 156 may be formed by wrapping the second end 162 of the strap 152 back onto an intermediate region 164 of the strap 152, between opposing ends of the strap 152 to form a circular loop, and sewing or otherwise connecting the second end 162 to the intermediate region 164. The second loophole may be sized to receive a user's outermost toe therein.

[0072] It should be appreciated that in other embodiments the innermost toe connector 146 and the outermost toe connector 148 may engage toes other than, or in addition to, a user's big toe and pinky toe to enable adjustment of the toe separation distance between two or more of the user's toes. Additionally, in some embodiments, the sandal 100 may include additional toe connectors and / or toe separators (e.g., partition walls, hooks, etc.) in addition to the innermost toe connector 146 and the outermost toe connector 148 to increase the toe separation distance across the user's foot. Such an implementation can enable a more uniform spacing between the user's toes, and / or can provide for selectively controlling the spacing between different pairs or sets of toes.

[0073] The adjustment mechanism 150 is configured to adjust a toe separation distance 14 (see FIG. 2) between the innermost toe connector 146 and the outermost toe connector 148. In the embodiment of FIGS. 7-8, the adjustment mechanism 150 is configured to determine a location of the second loop 156 along the at least one strap 152 relative to the first loop 154. The adjustment mechanism 150 includes a fastener 158 that is configured to enable connecting the second end 162 of the at least one strap 152 to multiple different locations along an intermediate region 164 of the strap 152.

[0074] In some embodiments, the adjustment mechanism 150 includes a snap fastener (e.g., a press button, etc.) that is configured to enable adjustment of the location of the second loop 156 and / or the first loop 154. For example, in an embodiment in which the second loop 156 is adjustable, the snap fastener may include a first connector (e.g., a stud, etc.) disposed at the second end 162 of the at least one strap 152, and a plurality of second connectors (e.g., sockets, etc.) disposed along the intermediate region 164. The first connector may be detachably coupled to any of the second connectors to change a location of the second loop 156.

[0075] In the embodiment of FIG. 7, the adjustment mechanism 150 includes a hook and loop fastener 166 that extends along at least two portions of the at least one strap 152, including a first portion (e.g., a hooked portion, etc.) extending along the second end 162 of the at least one strap 152, and a second portion (e.g., a loop portion, etc.) extending along the intermediate region 164. In some embodiments, the intermediate region 164 is configured to be at least partially disposed within the channel 134, so that the adjustment mechanism 150 is concealed from a user's view when worn. It should be appreciated that other types of adjustment and / or fastening mechanisms may be utilized to change the distance between the innermost toe connector 146 and the outermost toe connector 148. For example, the adjustment mechanism 150 may be formed as free ends of multiple straps (e.g., a first strap including the innermost toe connector 146 and the second strap including the outermost toe connector 148) that can be tied together at different locations to adjust the distance between the innermost toe connector 146 and the outermost toe connector 148. In other embodiments, the adjustment mechanism 150 includes a sliding knot, a turnbuckle, a clasp, or another type of length adjustment device for the at least one strap 152.

[0076] The design of the sole 102 and / or the toe separation system 104 may be different in various embodiments. For example, referring to FIGS. 9-10, a sandal 200 is shown that includes a pair of strap openings, shown as a first slit 236c and a second slit 236d. The first slit 236c and the second slit 236d are configured to support at least one strap 252 proximate to a forefoot region 218 of a sole 202. The first slit 236c and the second slit 236d are disposed between a first strap opening 232a and a second strap opening 232b of the sole 202, which may be the same as the first strap opening 132a and the second strap opening 132b described with reference to FIGS. 7-8. The first slit 236c and the second slit 236d are aligned with the other strap openings along the first direction 216. The first slit 236c and the second slit 236d are elongated cuts through a bridge 242 of a strap tower 236. In other embodiments, the first slit 236c and the second slit 236d may be disposed in the insole and / or outsole. The first slit 236c and the second slit 236d are spaced apart from one another along a height of the bridge 242. The first slit 236c and the second slit 236d together define a flap of material and / or facing which can be used to help secure the at least one strap 252 in place with respect to the sole 102. In some embodiments, each of the strap towers 236 defines a pair of strap openings.

[0077] Referring to FIG. 10, the at least one strap 252 (e.g., a first loop, etc.) extends through the first slit 236c and the second slit 236d and under the flap in a serpentine manner. In some embodiments, the first slit 236c and / or the second slit 236d have a smaller height and / or width than the at least one strap 252, and / or a loop of the at least one strap 252, which can prevent the strap 252 from being inadvertently removed from the sole 202.

[0078] The number, size, and / or location of elongated slot openings may be different in various embodiments. Referring to FIGS. 11-12, a sandal 300 is shown in which a second strap opening 336b is an elongated slot (e.g., an elongated eyelet, a through-hole opening, an elongated aperture, etc.) that is disposed proximate to an upper end (e.g., a free end, etc.) of the strap tower 336 and that extends through the strap tower 336. Like the slits described with respect to FIGS. 9-10, a height and / or a width of the elongated slot may be less than a height and / or width of the strap 352 (and / or at least one loop of the strap 352), which can prevent the strap 352 from being inadvertently removed from the sole 302.

[0079] Like the embodiment of FIGS. 7-8, the sandal 300 of FIGS. 11-12 also includes a first strap opening 332a in the form of a channel 334 that extends across the sole 302. The sole 302 (e.g., an outsole, etc.) includes at least one strap retainer 368 that is configured to secure the at least one strap 352 within the channel 334. In the embodiment of FIGS. 11-12, the sole 302 (e.g., the outsole, etc.) includes a plurality of strap retainers 368 spaced apart from one another across a length of the channel 334 in a second direction (e.g., a width direction, etc.). A first strap retainer 368a of the plurality of strap retainers 368 is an extension piece (e.g., a tap, a flange, etc.) that is approximately flush with a lower surface of the outsole and that extends across and covers a portion of the channel 334.

[0080] A second strap retainer 368b of the plurality of strap retainers 368 includes a pair of extension pieces that extend toward one another from opposing edges of the channel 334. The extension pieces are spaced apart from one another to form a gap 370 for receiving the at least one strap 352 therein. In some embodiments, a dimension (e.g., a width along a first direction) of the gap 370 is less than a width of the at least one strap 352. Beneficially, the design of the second strap retainer 368b enables insertion of the at least one strap 352 into the channel 334 in multiple directions (e.g., from beneath the second strap retainer 368b, across the channel 334, etc.), which can simplify installation of the at least one strap 352 into the channel 334. The size, number, and / or arrangement of the extension pieces may be different in various embodiments.

[0081] Referring to FIGS. 13-14, a sandal 400 is shown that includes a plurality of strap openings 436 that extend through the sole 402 along opposing sides of the sole 402. The arrangement of strap openings 436 may be symmetrical about a reference plane that extends between either side of the sole 402. In the embodiment of FIGS. 13-14, the strap openings 436 are elongated slots (e.g., elongated eyelets, elongated apertures, etc.). In other embodiments, the strap openings 436 are elongated slits (e.g., cuts, etc.) in the sole 402. The sandal 400 also includes a pair of straps, shown as a first strap 452a and a second strap 452b that are coupled to the sole 402 on opposing sides of the sole 402. The straps are coupled to the sole 402 at the strap openings 436. Each of the first strap 452a and the second strap 452b are configured to be inserted through a respective subset of the strap openings on a single side of the sole 402 in a serpentine manner. In the embodiment of FIGS. 13-14, the straps are inserted through the strap openings along the length of the sole 402 in the first direction (e.g., between the forward end and rear end of the sole 402).

[0082] The slot openings secure the first strap 452a and the second strap 452b along respective sides of the sole 402 from a forefoot region 418 to a hindfoot region 420, and between the forefoot region 418 and a heel cup 472. The heel cup 472 extends away from the sole 402 along a perimeter portion of the hindfoot region 420. In some embodiments, the straps are inserted through strap openings in the heel cup 472. The first strap 452a and the second strap 452b may be used to secure a user's ankle to the heel cup 427 (e.g., either along the ankle adjacent to the heel cup 427 or onto a user's leg above the heel cup 427, which can improve support and help prevent movement of the user's heel toward and away from the sole 402 in the hindfoot region 420), which can reduce the need for any other coverings along the sandal 400. Beneficially, the configuration of the sandal 400 in FIGS. 13-14 enables the use of the same straps to control the amount of toe spread, and to secure the sandal 400 to the user's foot. The toe separation distance and the tightness of the sandal 400 can be adjusted at the same time by pulling on the straps.

[0083] The profile of the sole 402 that supports the user's foot may also be different in various embodiments. For example, referring to FIG. 15, a top view of a sole 502 for a sandal 500 is shown that has a continuously tapered profile. A width 525 of the sole 502, parallel to a forward edge of the sole 502, increases continuously from a hindfoot region 520 of the sole 502 to a forefoot region 518 of the sole 502. The sole 502 has a substantially triangular shape when viewed from above that consists of three linear edges and three rounded corners that together define the entire perimeter of the sole 502. In such a design, the area of the sole 502 having the largest width is located in a forefoot region 518 of the sole 502 which matches the general profile a person's foot.

[0084] Referring to FIG. 16, a sandal 600 is shown that is contoured to better match the overall shape of a person's foot. An outer profile of a sole 602 of the sandal 600 is similar to the profile of the sole 602 described with reference to FIG. 16. The sole 602 includes a cutout 674 (e.g., a concave profile, etc.) adjacent to and extending along an inner side of the midfoot region 622, which provides approximately uniform spacing between the user's foot and the outer perimeter of the sole 602 along the midfoot region 622. The sole 602 also includes a curved protrusion 676 (e.g., a convex profile, etc.) protruding away from the forefoot region 618 along the forward end of the sole 602, which provides approximately uniform spacing between the user's toes and the outer perimeter of the sole 602 along the forefoot region 618.

[0085] Referring to FIGS. 17-19, a sandal 700 is shown that includes another implementation of a toe separation support system 730, according to an embodiment. The toe separation support system 730 includes an innermost toe connector 746 formed as a first loop 754 of a first strap 752a; and an outermost toe connector 748 formed as a second loop 756 of a second strap 752b disposed on an opposite side of the sole 702 as the first strap 752a.

[0086] In the embodiment of FIGS. 17-19, the first strap 752a is arranged along the sole 702 and is configured to engage a user's foot in a similar manner as the second strap 752b. In other embodiments, the design and / or arrangement of the first strap 752a and the second strap 752b may be different.

[0087] The toe separation support system 730 also includes support hardware along the sole 702 configured to support the first strap 752a and the second strap 752b to the sole 702, and to facilitate adjustment of the toe separation distance using the first strap 752a and / or the second strap 752b. In some embodiments, and as shown in FIGS. 17-19, the toe separation support system 730 includes a first pair of support elements (e.g., guide elements, rings, etc.), shown as a first ring 778 and a second ring 780. The rings are configured to support the first strap 752a in position along the sole 702. The first ring 778 and the second ring 780 are both coupled to a lateral side of the sole 702 (e.g., a first lateral side). The first ring 778 is spaced apart from the second ring 780 along a longitudinal direction extending between the forefoot region 718 to the hindfoot region 720.

[0088] The first ring 778 is coupled to the lateral side of the forefoot region 718 of the sole 702 in an area adjacent to and alongside of an innermost toe position along the forefoot region 718. The second ring 780 is coupled to a lateral side of the midfoot region or hindfoot region of the sole 702 alongside an upper strap.

[0089] In the embodiment of FIGS. 17-19, the first ring 778 is a triangular-shaped ring defining a triangular-shaped opening extending therethrough; and the second ring 780 is a rectangular-shaped ring defining a rectangular-shaped opening extending therethrough. The triangular-shaped outer profile of the first ring 778 can, beneficially, facilitate application of uniform pressure to the user's toe by distributing forces applied to the first strap 752a across substantially the entire length of at least one side of the first ring 778 during use (e.g., the shape of the first ring 778 conforms with the natural shape / bend of the first strap 752a as it passes through the first ring 778 and back toward the second ring 780). In other embodiments, the profile of the first ring 778 and / or the second ring 780 may be different (e.g., at least one ring may include a D-ring having a D-shaped profile, an O-ring, etc.).

[0090] Referring to FIG. 20, a first end of the first strap 752a is fixedly coupled to the sole 702 along a lateral edge of the sole 702. In some embodiments, and as shown, the first end of the first strap 752a is sewn to the sole 702. In other embodiments, the first end of the first strap 752a may be glued, welded, or otherwise fixedly secured to the sole 702 using any permanent coupling method now known or hereinafter developed. The first strap 752a extends from the first end through the first ring 778, back along the lateral side of the sole 702 and through the second ring 780 (see also FIG. 18) toward the midfoot or hindfoot region of the sole 702. A region of the first strap 752a, between the first end and the first ring 778, defines a first loop 754 that is sized to receive a user's innermost toe therein (e.g., an innermost functioning toe, a first toe, etc.).

[0091] In the embodiment of FIGS. 17-19, the second strap 752b and supporting hardware for the second strap 752b is arranged in the same manner along a second lateral edge of the sole 702 as the first strap 752a. In other embodiments, the arrangement of the second strap 752b and / or the supporting hardware for the second strap 752b may be different.

[0092] Referring to FIG. 19, the toe separation support system 730 also includes an adjustment mechanism 750 that includes a combination of the second ring 780 and a region at a second end of the first strap 752a. As shown, the region at the second end of the first strap 752a includes a hook and loop fastener 782, such that the second end of the first strap 752a can be looped back and fastened to itself about the second ring 780. In other embodiments, the design and arrangement of the adjustment mechanism 750 may be different. For example, the adjustment mechanism 750 may include a buckle in place of, or in combination with, the second ring 780 that is configured to engage with openings disposed along and through the first strap 752a. In other embodiments, the adjustment mechanism 750 may include a cinch connector (e.g., a clip, etc.) that is configured to clamp down on the first strap 752a and enable movement of the first strap 752a in only a single direction through the connector (absent manual manipulation to the connector to release the first strap 752a).

[0093] In some embodiments, and as shown in FIGS. 17-19, the sandal 700 also includes an upper strap extending across the midfoot region of the sole 702 and a heel strap extending from the upper strap to support a user's midfoot and heel within the sandal 700. In some embodiments the upper strap and the heel strap are both adjustable to accommodate different feet sizes within the sandal 700.

[0094] Referring to FIG. 21, the sole 702 is shaped the same as, or similar to, the sole described with reference to FIG. 16 and defines a triangular shape when viewed from above or below the sole 702, which can improve the total allowable separation distance between a user's toes.

[0095] Referring to FIG. 22, a toe separation system 830 is shown that includes an adjustment mechanism 850 configured as multiple strap mounting points along a sole and / or upper strap portion of a sandal. The toe separation system 830 also includes a first strap 852a; a second strap 852b; an innermost toe connector 846 coupled to a distal end of the first strap 852a; and an outermost toe connector 848 coupled to a distal end of the second strap 852b. The toe separation system 830 also includes cleats 886 that are configured to secure the first strap 852a and the second strap 852b to the sandal. In some embodiments, the cleats 886 may form part of the sole of the sandal instead of the toe separation system 830 (e.g., the cleats 886 forming a toe separation system support that is coupled to the footbed adjacent to the forefoot region).

[0096] The innermost toe connector 846 is coupled (e.g., directly) to the first strap 852a at a distal end of the first strap 852a opposite the first connector 884a such that the innermost toe connector 846 and the first connector 884a are disposed at opposing ends of the first strap 852a. The outermost toe connector 848 is arranged in the same or similar manner relative to the second strap 852b. The innermost toe connector 846 and the outermost toe connector 848 define loops configured to receive (e.g., nestably engage) the innermost toe and outermost toe, respectively.

[0097] In some embodiments, the first strap 852a and / or the second strap 852b include flexible strap or cord made from rubber or another elastic material. In some embodiments, and as shown, the first strap 852a and / or the second strap 852b define part of the adjustment mechanism 850 that is configured to enable adjustment of the positioning of the innermost toe connector 846 and outermost toe connector 848. For example, the first strap 852a and / or the second strap 852b may define a connector (e.g., a female connector), which may include a cleat, a flexible loop, etc. In the embodiment of FIG. 22, the first strap 852a and the second strap 852b each define a connector, shown as a first connector 884a and a second connector 884b (collectively, the connectors 884), at a proximal end thereof. The connectors 884 are through hole openings formed by the strap material. In some embodiments, at least one of the connectors 884 may include another type of quick connect feature, such as a button connector, a clasp, or another type of quick release mechanical connector.

[0098] In some embodiment, and as shown, the adjustment mechanism 850 also includes a plurality of mounting studs, shown as studs 888 (which may also be referred to as pegs, protrusions and / or engaging members). The studs 888 are configured to be coupled to and protrude from the sole and / or the intermediate strap that extends over a user's foot. The studs 888 are disposed at different locations along the length of the sole and / or the intermediate strap (e.g., are disposed at different positions along the first direction 114 as shown in FIG. 3). In some embodiments, the studs 888 are also disposed at different axial positions along the sole and / or the intermediate strap, which can provide alternative mounting positions in various different types of sandal designs. In the embodiment of FIG. 22, the toe separation system 830 includes three studs 888 on each side of the sandal. In other embodiments, the number of studs 888 may be different. Using studs 888 on both sides of the sandal provides various additional degrees of adjustment of the position of the innermost and outermost toes, while accommodating differences in foot sizes and shapes.

[0099] The connector 884 is configured to couple to any one of the studs 888 on a respective side of the sole to set a toe separation distance between the innermost toe and the outermost toe. In some embodiments, and as shown, the studs 888 are sized and shaped to nest with respective ones of the connectors 884 of the first strap 852a and the second strap 852b. In the embodiment of FIG. 22, the studs 888 are cylindrical protrusions having a similar cross-sectional profile as the through hole openings defined by the straps. In some embodiments, the studs 888 are larger (e.g., have a larger diameter) than the through hole openings in the straps, so that the connectors 884 may be stretch fit over the studs 888, which can retain the straps in position on respective ones of the studs 888 during use.

[0100] The cleats 886 are configured to support the straps along the sole of the sandal proximate to the innermost toe connector 846 and outermost toe connector 848. The cleats 886 also are configured to redirect the applied force from the straps from the longitudinal direction (e.g., the first direction 114 of FIG. 4) to the substantially lateral direction (e.g., the second direction 116 of FIG. 3) to pull the innermost toe and the outermost toe apart.

[0101] In the embodiment of FIG. 22, the cleats 886 are coupled to a side of the sole in the forefoot region. In some embodiments, and as shown, the cleats 886 are pinch connectors including legs that at least partially surround respective ones of the first strap 852a and the second strap 852b to prevent the first strap 852a and the second strap 852b from pulling away from the cleats 886, while allowing relative movement between the straps and the sole along the longitudinal direction (e.g., the first direction 114 of FIG. 3) along a first portion of the straps and along a substantially lateral direction (e.g., the second direction 116 of FIG. 3) along a second portion of the straps. The position of the cleats 886 along the sandal may be different in various embodiments.

[0102] Referring to FIG. 23, a method 900 of making and using an article of footwear is shown, according to an embodiment. The method 900 may be used to make and use any embodiment of the footwear described herein, and will be described with reference to the various portions of the sandal 100 of FIGS. 1-7, the sandal 700 of FIGS. 17-21, and the toe separation system 830 of FIG. 22. In other embodiments, the method 900 may include additional, fewer, and / or different operations.

[0103] Operation 902 includes forming a sole that defines a tapered footbed. The footbed may include a forefoot region, a hindfoot region, and a midfoot region extending between the forefoot region and the hindfoot region. In some embodiments, operation 902 includes forming the sole from a single piece of material using an injection molding operation. In other embodiments, forming the sole may include forming multiple layers including an outsole and an insole, and connecting the outsole to the insole. The insole may define the footbed for the sole.

[0104] Operation 904 includes engaging a toe separation system with the sole. In some embodiments, operation 904 includes engaging the toe separation system with the sole adjacent to the forefoot region. Operation 904 may include sewing, bonding, or otherwise fixedly coupling a first end of at least one strap with the sole, for example, along a lateral edge of the sole that is adjacent to the forefoot region.

[0105] In some embodiments, operation 904 may include engaging at least one strap with at least one strap opening that is defined by the sole, a strap tower, or another support element (e.g., a ring). For example, operation 904 may include engaging at least at least one strap with a channel that extends through the sole or a ring coupled to the sole in a width direction. In some implementations, operation 904 may also include wrapping the at least one strap around a bottom of the sole.

[0106] In some embodiments, operation 904 includes engaging a loop of the at least one strap with a strap tower that supports at least a portion of the loop above the footbed (e.g., above the forefoot region of the footbed, etc.). In other embodiments, operation 904 includes engaging the at least one strap with a ring that is coupled to a lateral side of the sole. In either implementation, operation 904 may include engaging the loop, or a portion of the strap adjacent to the loop, with a strap opening that is disposed along a perimeter of the footbed and spaced above or adjacent to a forefoot region of the footbed.

[0107] In yet other embodiments, operation 904 includes securing at least one strap to the sole so that the strap extends in a first direction between opposing ends of the sole (e.g., along a perimeter of the sole, etc.). In such embodiments, operation 904 may include passing the strap through multiple strap openings disposed along a perimeter of the sole and / or through a heel cup that is disposed opposite the forefoot region of the sole. Operation 904 may include repeating the above operations for a second strap on a second lateral side of the sole.

[0108] Operation 906 includes engaging an innermost toe connector of the toe separation system with a first toe (e.g., an innermost toe, etc.). In some embodiments, operation 906 includes engaging a first loop of at least one strap with a user's big toe. For example, operation 906 may include inserting the first loop (e.g., in a region between a first end of the strap and a first ring, etc.) over the user's big toe so that the first loop at least partially circumscribes the big toe. In some embodiments, such as where the strap includes a hook and loop fastener adjacent to a first end of the strap), operation 906 may include (i) wrapping a first end of the strap over a portion of the forefoot region, (ii) passing the first end away from the footbed through a space in between the user's big toe and the next adjacent toe, and (ii) wrapping the first end over and around the user's big toe and back down toward an intermediate region of the strap.

[0109] Operation 908 includes engaging an outermost toe connector of the toe separation system with a second toe (e.g., an outermost toe, etc.). Operation 908 may include engaging a second loop of the at least one strap (e.g., a second strap) with a user's pinky toe or another functioning outermost toe. For example, operation 908 may include inserting the second loop over the user's pinky toe so that the second loop circumscribes the pinky toe. In some embodiments, operation 908 includes directing a second end of the strap over the footbed and around the user's pinky toe, similar to the process described with respect to operation 906. In some embodiments, operation 906 and operation 908 are reversed.

[0110] Operation 910 includes adjusting a toe separation system to adjust a toe separation distance between the first toe and the second toe. In some embodiments, operation 910 includes manipulating an adjustment mechanism of the toe separation system to adjust a distance between the innermost toe connector and the outermost toe connector. Operation 910 may include manipulating at least one strap to reduce an overall length of the at least one strap between a first loop at a first end of the strap and a second loop at a second end of the strap. In other embodiments, operation 910 includes adjusting the length of one or both a first strap that is engaged with the user's innermost toe and a second strap that is engaged with the user's outermost toe.

[0111] By way of example, in an embodiment in which the adjustment mechanism is a hook and loop fastener, operation 910 may include pulling on a first end of the strap adjacent to the user's toe to pull the toe laterally away from the user's remaining toes (e.g., in the second direction as described above). Operation 910 may further include engaging a first portion (e.g., a hook portion, etc.) of the hook and loop fastener at the first end of the strap with a second portion (e.g., a loop portion, etc.) of the hook and loop fastener along an intermediate region of the strap. In some embodiments, operation 910 includes adjusting a position of the second end of the strap (e.g., engaging the user's pinky toe) in a similar manner as the first end.

[0112] In another embodiment, manipulating the adjustment mechanism includes tying a pair of straps together at different positions to adjust the toe separation distance. A first strap of the pair of straps may be coupled to the innermost toe connector and the second strap of the pair of straps may be coupled to the outermost toe connector.

[0113] As utilized herein, the terms “approximately,”“about,”“substantially,” and similar terms are intended to have a broad meaning in harmony with the common and accepted usage by those of ordinary skill in the art to which the subject matter of this disclosure pertains. It should be understood by those of skill in the art who review this disclosure that these terms are intended to allow a description of certain features described and claimed without restricting the scope of these features to the precise numerical ranges provided. Accordingly, these terms should be interpreted as indicating that insubstantial or inconsequential modifications or alterations of the subject matter described and claimed are considered to be within the scope of the disclosure as recited in the appended claims.

[0114] The term “coupled” and variations thereof, as used herein, means the joining of two members directly or indirectly to one another. Such joining may be stationary (e.g., permanent or fixed) or moveable (e.g., removable or releasable). Such joining may be achieved with the two members coupled directly to each other, with the two members coupled to each other using a separate intervening member and any additional intermediate members coupled with one another, or with the two members coupled to each other using an intervening member that is integrally formed as a single unitary body with one of the two members. If “coupled” or variations thereof are modified by an additional term (e.g., directly coupled), the generic definition of “coupled” provided above is modified by the plain language meaning of the additional term (e.g., “directly coupled” means the joining of two members without any separate intervening member), resulting in a narrower definition than the generic definition of “coupled” provided above. Such coupling may be mechanical, electrical, or fluidic.

[0115] The term “or,” as used herein, is used in its inclusive sense (and not in its exclusive sense) so that when used to connect a list of elements, the term “or” means one, some, or all of the elements in the list. Conjunctive language such as the phrase “at least one of X, Y, and Z,” unless specifically stated otherwise, is understood to convey that an element may be either X, Y, Z; X and Y; X and Z; Y and Z; or X, Y, and Z (i.e., any combination of X, Y, and Z). Thus, such conjunctive language is not generally intended to imply that certain embodiments require at least one of X, at least one of Y, and at least one of Z to each be present, unless otherwise indicated.

[0116] References herein to the positions of elements (e.g., “top,”“bottom,”“above,”“below”) are merely used to describe the orientation of various elements in the FIGURES. It should be noted that the orientation of various elements may differ according to other exemplary embodiments, and that such variations are intended to be encompassed by the present disclosure.

[0117] Although the figures and description may illustrate a specific order of method steps, the order of such steps may differ from what is depicted and described, unless specified differently above. Also, two or more steps may be performed concurrently or with partial concurrence, unless specified differently above. Such variation may depend, for example, on the software and hardware systems chosen and on designer choice. All such variations are within the scope of the disclosure. Likewise, software implementations of the described methods could be accomplished with standard programming techniques with rule-based logic and other logic to accomplish the various connection steps, processing steps, comparison steps, and decision steps.

[0118] It is important to note that the construction and arrangement of the articles of footwear as shown in the various exemplary embodiments is illustrative only. Additionally, any element disclosed in one embodiment may be incorporated or utilized with any other embodiment disclosed herein.

Claims

1. An article of footwear, comprising:a sole defining a footbed, the footbed comprising:a forefoot region;a hindfoot region; anda midfoot region extending between the forefoot region and the hindfoot region; anda toe separation system engaging the sole and disposed adjacent to the forefoot region, the toe separation system comprising:an innermost toe connector;an outermost toe connector; andan adjustment mechanism configured to adjust a toe separation distance between the outermost toe connector and the innermost toe connector.

2. The article of footwear of claim 1, wherein each width of footbed across the forefoot region is greater than each width of the footbed across each of the hindfoot region and the midfoot region.

3. The article of footwear of claim 1, wherein a width of the footbed increases continuously from the hindfoot region through the midfoot region and to the forefoot region.

4. The article of footwear of claim 1, wherein the sole has a triangular shape when viewed from above that defines only three corner regions.

5. The article of footwear of claim 1, wherein the toe separation system includes at least one strap, the innermost toe connector is a first loop of the at least one strap that is configured to wrap around a person's innermost toe, and wherein the outermost toe connector is a second loop of the at least one strap that is configured to wrap around a person's outermost toe.

6. The article of footwear of claim 1, wherein the sole defines a strap opening that extends therethrough, the toe separation system including at least one strap, the innermost toe connector disposed at an end of the at least one strap, the at least one strap extending through the strap opening.

7. The article of footwear of claim 6, wherein the sole includes:an insole that defines the footbed; andan outsole that is coupled to the insole, the outsole configured to contact a ground surface, wherein the strap opening is a channel that extends in a width direction through the outsole.

8. The article of footwear of claim 1, wherein the toe separation system further includes a strap including a connector, and wherein the adjustment mechanism includes a plurality of mounting studs on a side of the sole, the connector configured to couple to any one of the mounting studs to set the toe separation distance.

9. The article of footwear of claim 8, wherein the toe separation system further comprises a cleat disposed on a side of the sole in the forefoot region, the cleat coupling the strap to the sole and configured to allow relative movement between the strap and the sole along a first direction along a first portion of the strap and along a second direction along a second portion of the strap that is substantially normal to the first direction.

10. The article of footwear of claim 1, further comprising a covering coupled to the sole, the covering extending over at least a portion of the midfoot region of the footbed.

11. The article of footwear of claim 1, wherein the toe separation system includes at least one strap, and wherein the adjustment mechanism includes a hook and loop fastener that extends along at least two portions of the at least one strap.

12. A sole for an article of footwear, the sole defining a footbed, the footbed comprising:a forefoot region;a hindfoot region; anda midfoot region extending between the forefoot region and the hindfoot region, wherein each width of footbed across the forefoot region is greater than each width of the footbed across each of the hindfoot region and the midfoot region. the sole further comprising:a toe separation system support coupled to the footbed adjacent to the forefoot region, the toe separation system support configured to support a toe separation system at least partially within the forefoot region.

13. The sole of claim 12, wherein the width of the footbed increases continuously from the hindfoot region through the midfoot region and to the forefoot region.

14. The sole of claim 12, wherein the footbed has a triangular shape when viewed from above that defines only three corner regions.

15. The sole of claim 12, wherein the sole defines a strap opening that extends therethrough adjacent to the forefoot region.

16. The sole of claim 15, further comprising:an insole that defines the footbed; andan outsole that is coupled to the insole, the outsole configured to contact a ground surface, wherein the strap opening is a channel that extends in a width direction through the outsole.

17. The sole of claim 12, wherein the toe separation system support comprises a pair of strap towers that extend from the footbed and are disposed on opposing sides of the forefoot region, the pair of strap towers configured to support a portion of at least one strap above the footbed.

18. The sole of claim 12, wherein the toe separation system support comprises a cleat disposed on a side of the sole in the forefoot region, the cleat configured to couple a strap to the sole and configured to allow relative movement between the strap and the sole along a first direction along a first portion of the strap and along a second direction along a second portion of the strap that is substantially normal to the first direction.

19. A method of making and / or using an article of footwear, comprising:forming a sole that defines a footbed, the footbed comprising:a forefoot region;a hindfoot region; anda midfoot region extending between the forefoot region and the hindfoot region; andengaging a toe separation system with the sole adjacent to the forefoot region, the toe separation system comprising:an innermost toe connector;an outermost toe connector; andan adjustment mechanism configured to adjust a toe separation distance between the innermost toe connector and the outermost toe connector.

20. The method of claim 19, further comprising:engaging the innermost toe connector of the toe separation system with an innermost toe;engaging the outermost toe connector of the toe separation system with an outermost toe; andadjusting, by using the adjustment mechanism, the toe separation distance between the innermost toe connector and the outermost toe connector.

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