Warm-keeping breathable shoe

Abstract

The utility model discloses a pair of warm-keeping and breathable shoes, which comprises soles and vamps, and surface layers and middle layers of the vamps are woven by adopting water-repellent yarns so as to provide a waterproof effect; the inner layer comprises a main body layer which is formed by weaving heating yarns and is connected with the middle layer, and a plurality of moisture removal parts which are woven by hydrophilic yarns and protrude out of the inner side surface of the main body layer; the main body layer of the enclosed area is lower than the moisture removal part and forms a heat gathering concave part; all the heat gathering concave parts are densely laid on the inner side surface of the inner layer; at least one breathable part is arranged on each of the left side and the right side of the vamp corresponding to the front side of a foot ankle joint, a middle layer of each breathable part is formed by doubling and weaving elastic yarns and water-repellent yarns, and the weaving density of each breathable part is smaller than that of the middle layer outside the corresponding breathable part; and meanwhile, the middle layer of the ventilating part is not connected with the surface layer and the inner layer belonging to the same ventilating part. The shoe can improve the wearing comfort in a cold environment.

Description

Technical Field

[0001] The utility model relates to the technical field of fabrics, and particularly relates to a pair of shoes with warmth retention and breathability. Background Art

[0002] In the application scenarios of keeping out the cold and heat preservation, shoes and clothing generally adopt methods such as setting up fleece layers, filling with down, and setting up windproof fabrics to improve the cold resistance of shoes and clothing. Generally speaking, taking the shoe upper as an example, since it is difficult to fill the shoe upper with down, generally a windproof fabric is used on the outer layer, such as polyester fabric treated with a coating, and a heat preservation fabric is used on the inner layer, such as wool fabric, etc., or fleece is added to the inner layer, which can not only provide good heat preservation performance but also improve the wearing comfort. For clothing, basically the same design is adopted. However, the sweat discharge and breathability effects of this multi-layer fabric design are poor, and the wearing comfort in a cold environment is low. Summary of the Utility Model

[0003] The purpose of the utility model is to overcome the above-mentioned defects or problems existing in the background art, and provide a pair of shoes with warmth retention and breathability, which can improve the wearing comfort in a cold environment.

[0004] To achieve the above purpose, the utility model adopts the following technical solutions:

[0005] Technical Solution 1: A pair of shoes with warmth retention and breathability, which includes a sole, and also includes a shoe upper, which is compounded on the sole, and the shoe upper is sequentially provided with a surface layer, an intermediate layer, and a lining layer from outside to inside; the surface layer is woven with water-repellent yarns to form a waterproof part with a closed texture, and is provided with ventilation holes distributed at intervals; the intermediate layer is woven with water-repellent yarns and is connected to the surface layer, and its weaving density is less than that of the surface layer; the lining layer includes a main body layer woven with heat-generating yarns and connected to the intermediate layer, and a plurality of moisture-discharging parts woven with hydrophilic yarns and protruding from the inner surface of the main body layer; the moisture-discharging parts are connected end to end, and the main body layer in the enclosed area is lower than the moisture-discharging parts and forms a heat accumulation concave part; all the heat accumulation concave parts are densely arranged on the inner surface of the lining layer; at least one ventilation part is respectively arranged on the left and right sides of the shoe upper corresponding to the front side position of the ankle joint of the foot, the intermediate layer of the ventilation part is woven by ply yarn of elastic yarn and water-repellent yarn, and its weaving density is less than that of the intermediate layer outside the ventilation part, and at the same time, the intermediate layer of the ventilation part is not connected to the surface layer and the lining layer belonging to the same ventilation part.

[0006] Technical Solution 2 based on Technical Solution 1: The ventilation part is inclined and extends in the relative front-back direction.

[0007] Technical solution three based on technical solution two: A plurality of the ventilation parts are respectively arranged on the left and right sides of the shoe upper, and the plurality of ventilation parts on the same side are arranged in sequence along the front-back direction.

[0008] Technical solution four based on technical solution three: The thickness range of the middle layer outside the ventilation part of the shoe upper is 0.5 mm to 1.5 mm, and the thickness of the middle layer of the ventilation part is less than the thickness of the middle layer outside the ventilation part.

[0009] Technical solution five based on technical solution four: The shape of the moisture discharge part is a regular hexagon; the adjacent heat accumulation concave parts on the inner layer share one side of the corresponding moisture discharge part.

[0010] Technical solution six based on technical solution five: The moisture discharge part is formed by co-weaving hydrophilic yarns and heat-generating yarns in a complex filament twisted structure.

[0011] Technical solution seven based on technical solution six: The co-weaving ratio of hydrophilic yarns and heat-generating yarns in the moisture discharge part is 1:1.

[0012] Technical solution eight based on any one of technical solutions one to seven: The water-repellent yarn is made of polyester fiber treated with a water-repellent finishing agent.

[0013] Technical solution nine based on any one of technical solutions one to seven: The heat-generating yarn is made of polyester fiber with far-infrared ceramic powder attached to the surface.

[0014] Technical solution ten based on any one of technical solutions one to seven: The hydrophilic yarn is made of acetate fiber containing hydrophilic groups and having a microgroove structure on the surface.

[0015] As can be seen from the above description of the present invention, compared with the prior art, the present invention has the following beneficial effects:

[0016] Technical solution one provides a pair of shoes with warmth retention and breathability. The shoe upper of the shoes includes a surface layer, a middle layer and an inner layer. The surface layer is woven from water-repellent yarns to form a waterproof part with a closed texture and is provided with ventilation holes distributed at intervals. At the same time, the middle layer is also woven with water-repellent yarns, but the weaving density of the middle layer is less than that of the surface layer, which makes the middle layer have a ventilation effect. In addition, a main body layer woven with heat-generating yarns and a moisture discharge part woven with hydrophilic yarns are arranged in the inner layer. The main body layer can provide warmth retention for the shoes through self-heating and promote the sweating of the human body. After the sweat discharged by the human body is absorbed by the moisture discharge part, it ventilates through the relatively sparse middle layer and finally discharges through the ventilation holes of the surface layer, so as to achieve the effect of warmth retention and breathability; moreover, both the surface layer and the middle layer are woven from water-repellent yarns, which can not only play a waterproof role, but also achieve a balance between ventilation and reducing sweat evaporation and preventing heat transfer, improving the overall warmth retention and breathability effect of the shoes;

[0017] In addition, on the inner layer of the shoe upper, a heat - gathering concave part is formed by enclosing with a moisture - discharging part. The heat - gathering concave part is lower than the moisture - discharging part. When the shoe upper fits with the human foot, a cavity is formed at the position of the heat - gathering concave part between the human body surfaces. This cavity can absorb the heat emitted by the human body, and then through the self - heating effect of the heat - generating yarn, the heat is gathered at the position of the heat - gathering concave part, thus forming multiple "heating parts", thereby improving the heat - generating and heat - retaining effects of the warm and breathable shoes. At the same time, the heat - gathering concave part is formed by enclosing with the moisture - discharging part, and the moisture - discharging part can correspondingly absorb the sweat at the position of the heat - gathering concave part within its enclosed area, thereby improving the absorption efficiency of the moisture - discharging part for sweat. And, the heat - gathering concave part is densely paved on the inner - side surface of the inner layer, which can not only enable the moisture - discharging part to have a large enough contact area with the human body surface, but also improve the wrapping property of the heating part formed by the heat - gathering concave part on the wearing part, thus achieving a balance between heat preservation and breathability and improving the wearing comfort of this fabric in a cold environment.

[0018] In addition, a ventilation part is provided on the shoe upper. The ventilation part is located at the front - side position corresponding to the ankle joint of the foot on the left and right sides of the shoe upper. This position is where the foot moves frequently. The middle layer of the ventilation part is woven by ply - yarn of elastic yarn and water - repellent yarn, and the middle layer of this part does not connect with the surface layer and the inner layer. Therefore, the middle layer of this part has a larger activity space. At the same time, the weaving density of the middle layer of this part is smaller than that of the middle layer of other parts, which makes the middle layer of this part have a better ventilation effect. When the foot moves, the shoe upper will also twist and stretch at the ventilation part and its surrounding areas. At this time, the yarns in the middle layer of the ventilation part will be stretched apart, forming larger gaps between the yarns, thereby further improving the ventilation effect of this part. And when the foot is not moving, the elastic yarn can tighten the middle layer of the ventilation part, so that the middle layer can still provide good heat - preservation and waterproof effects.

[0019] In Technical Solution 2, the ventilation part extends obliquely in the relative front - to - back direction, which can better adapt to the movement mode of the foot and improve the adaptability of the shoe upper to the foot movement.

[0020] In Technical Solution 3, multiple ventilation parts are provided on the left and right sides of the shoe upper, and the ventilation parts on the same side are arranged in sequence in the front - to - back direction, which can improve the overall ventilation effect of the shoe upper.

[0021] In Technical Solution 4, the approximate thickness range of the middle layer of the shoe upper is defined. Within this thickness range, the middle layer has good waterproof and ventilation properties. At the same time, the thickness of the middle layer of the ventilation part is defined to be less than the thickness of the middle layer of other parts. A smaller thickness can improve the ventilation effect of the middle layer of this part and also improve the deformation ability of the middle layer of this part.

[0022] In Technical Solution Five, the shape of the moisture discharge part is a regular hexagon, which can ensure the close paving arrangement of the heat accumulation concave part on the inner surface of the inner layer, without wasting the space of the inner surface of the inner layer, and improving the moisture discharge and heat preservation performance.

[0023] In Technical Solution Six, the moisture discharge part is formed by knitting the heat-generating yarn and the hydrophilic yarn in a complex yarn doubling and twisting structure. This knitting method can make the two kinds of yarns evenly and tightly wound and in contact, which is beneficial to the heat preservation performance of the inner layer, and at the same time does not affect the moisture absorption of the moisture discharge part.

[0024] In Technical Solution Seven, the doubling ratio of the hydrophilic yarn and the heat-generating yarn in the moisture discharge part is 1:1, and the two ratios are equal, which is beneficial to their joint action.

[0025] In Technical Solution Eight, the water-repellent yarn uses polyester fiber treated with a water-repellent finishing agent. The water-repellent finishing agent changes the wetting property of the surface of the polyester fiber, making it hydrophobic, thereby preventing water from entering the inner layer or reaching the surface layer from the inner layer.

[0026] In Technical Solution Nine, far-infrared ceramic powder is added to the heat-generating yarn. After absorbing the heat emitted by the human body, it can convert it into far-infrared radiation and return it to the human body to provide a heat preservation effect.

[0027] In Technical Solution Ten, the surface of the acetate fiber containing hydrophilic groups has a microgroove structure, which can improve the moisture absorption and sweat discharge efficiency and ensure the dryness and breathability of the fabric. Brief Description of the Drawings

[0028] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for the description of the embodiments. Obviously, the following drawings are some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0029] Figure 1 It is a schematic structural diagram of the warm and breathable shoes provided by the embodiment of the present invention;

[0030] Figure 2 It is Figure 1 a schematic structural diagram of the shoe upper in

[0031] Main reference numerals description:

[0032] Surface layer 1; Waterproof part 11; Ventilation holes 12; Inner layer 2; Heat accumulation concave part 21; Moisture discharge part 22; Intermediate layer 3; Ventilation part 4. Detailed Embodiments

[0033] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are the preferred embodiments of the present utility model and should not be regarded as excluding other embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0034] In the claims, specification and above-mentioned accompanying drawings of the present utility model, unless otherwise clearly defined, when using terms such as "first", "second" or "third", etc., they are used to distinguish different objects rather than to describe a specific order.

[0035] In the claims, specification and above-mentioned accompanying drawings of the present utility model, unless otherwise clearly defined, for orientation terms, when using terms such as "center", "horizontal", "longitudinal", "level", "vertical", "top", "bottom", "inner", "outer", "upper", "lower", "front", "rear", "left", "right", "clockwise", "counterclockwise", etc. to indicate the orientation or position relationship, it is based on the orientation and position relationship shown in the accompanying drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, so it cannot be understood as limiting the specific protection scope of the present utility model.

[0036] In the claims, specification and above-mentioned accompanying drawings of the present utility model, unless otherwise clearly defined, when using terms such as "fixed connection" or "fixedly connected", it should be understood in a broad sense, that is, any connection method without displacement relationship and relative rotation relationship between the two, that is, including non-detachable fixed connection, detachable fixed connection, being integrated as a whole, and being fixedly connected through other devices or elements.

[0037] In the claims, specification and above-mentioned accompanying drawings of the present utility model, when using terms such as "comprising", "having" and their variants, the intention is "including but not limited to".

[0038] Embodiment

[0039] An embodiment of the present utility model provides a pair of warm and breathable shoes. Referring to Figure 1 , the shoes include a sole and an upper, and the upper includes a surface layer 1, an intermediate layer 3 and a lining layer 2. Through its upper, the shoes have good warm and breathable performance in a cold environment, which can improve the wearing comfort of users.

[0040] Taking the state of normal use of the shoes as an example, the side facing the inner cavity of the shoes is the inner side, and the side facing the outside of the shoes is the outer side. The shoe upper of the shoes includes a surface layer 1, an intermediate layer 3, and a lining layer 2 from outside to inside in sequence. Among them, in the part except the ventilation part 4, the surface layer 1, the intermediate layer 3, and the lining layer 2 of the shoe upper are joined at the surfaces on their respective opposite sides. The joining method can be weaving them into one body or connecting them into one body by means of adhesion.

[0041] Referring to Figure 2 , the surface layer 1 of the shoe upper is woven with water-repellent yarns to form a waterproof part 11 with a closed texture, and ventilation holes 12 are arranged at intervals through it; the intermediate layer 3 is woven with water-repellent yarns, is joined with the surface layer 1, and its weaving density is less than that of the surface layer 1; the lining layer 2 includes a main body layer woven with heat-generating yarns and joined with the intermediate layer 3, and a plurality of moisture-discharging parts 22 woven with hydrophilic yarns and protruding from the inner surface of the main body layer; the moisture-discharging parts 22 are joined end to end, and the main body layer in the enclosed area is lower than the moisture-discharging parts 22 and forms a heat-accumulating concave part 21; all the heat-accumulating concave parts 21 are densely arranged on the inner surface of the lining layer 2; and at least one ventilation part 4 is respectively arranged on the left and right sides of the shoe upper corresponding to the front side position of the ankle joint of the foot. The intermediate layer 3 of the ventilation part 4 is formed by co-weaving elastic yarns and water-repellent yarns, and its weaving density is less than that of the intermediate layer 3 outside the ventilation part 4. At the same time, the intermediate layer 3 of the ventilation part 4 is not joined with the surface layer 1 and the lining layer 2 that belong to the same ventilation part 4.

[0042] Among them, both the surface layer 1 and the intermediate layer 3 are woven with water-repellent yarns. The water-repellent yarns have hydrophobic properties and can play a certain degree of waterproofing role. The difference between the two is that the surface layer 1 has a higher weaving density, forming a waterproof part 11 with a closed texture, thereby improving the waterproof performance of the surface layer 1. And since the surface layer 1 is located on the outermost side of the shoe upper, improving the waterproof performance of the surface layer 1 can effectively ensure the overall waterproof effect of the shoe upper. In addition, ventilation holes 12 are arranged at intervals through the surface layer 1. At the same time, due to the low weaving density of the intermediate layer 3, the intermediate layer 3 has a certain ventilation performance in addition to the waterproof effect. Cooperating with the ventilation holes 12, it can play an appropriate ventilation effect at most positions of the shoe upper.

[0043] Moreover, the inner layer 2 is provided with a main body layer woven with heat-generating yarns and a moisture-discharging part 22 woven with hydrophilic yarns. The hydrophilic yarns have good water absorption. The moisture-discharging part 22 woven with hydrophilic yarns can absorb sweat well and transport the sweat to the middle layer 3. After the sweat passes through the gaps between the relatively sparse yarns of the middle layer 3, it is discharged through the ventilation holes 12 of the surface layer 1. At the same time, the heat-generating yarns have the function of self-heating. They can dissipate heat by reflecting human body heat radiation or other means, thus playing a role in keeping warm. The main body layer formed by weaving the heat-generating yarns can not only play a role in keeping the human body warm, but also promote the human body to slightly perspire, improve the heat transfer and conversion efficiency. At the same time, the excess sweat will be taken away by the moisture-discharging part 22, so as to achieve a good balance between warmth retention and moisture discharge. Moreover, both the surface layer 1 and the middle layer 3 are woven with water-repellent yarns, which can not only play a waterproof role, but also achieve a balance between ventilation and reducing sweat evaporation and preventing heat transfer, improving the overall warmth retention and ventilation effect of the shoes.

[0044] Among them, the water-repellent yarns are made of polyester fibers treated with a water-repellent finishing agent. The water-repellent finishing agent changes the wetting properties of the surface of the polyester fibers, making them hydrophobic, thus preventing moisture from entering the inner layer 2 from the surface layer 1.

[0045] The heat-generating yarns are made of polyester fibers with far-infrared ceramic powder attached to the surface. Adding far-infrared ceramic powder to the heat-generating yarns can, after absorbing the heat emitted by the human body, convert it into far-infrared rays and radiate them back to the human body to provide a warming effect.

[0046] The hydrophilic yarns are made of acetate fibers containing hydrophilic groups and having a microgroove structure on the surface, which can improve the moisture absorption and discharge efficiency and ensure the dryness and breathability of the fabric.

[0047] It should be understood that the yarns used above are all commonly used yarns in the prior art. Those skilled in the art can clearly know which yarns and which weaving methods can achieve the above-mentioned performance and effects through the above description.

[0048] Among them, to further improve the warmth retention and waterproof effects, the surface layer 1 is woven with a waterproof part 11 in a knitted tissue structure with a closed texture. At the same time, the water-repellent yarns used for the middle layer 3 can be water-repellent fluffy yarns, so that the thickness range of the middle layer 3 is 0.5 mm to 1.5 mm, thereby improving the support effect of the shoe upper.

[0049] In addition, the moisture-removing part 22 is joined end to end, and the main layer of its enclosed area is lower than the moisture-removing part 22 and forms a heat-accumulating concave part 21; when the shoe upper is attached to the human foot, the position of the heat-accumulating concave part 21 forms a cavity between the human body surfaces. This cavity can absorb the heat dissipated by the human body, and then through the self-heating effect of the heat-generating yarn, the heat is concentrated at the position of the heat-accumulating concave part 21, thus forming multiple "heating parts", thereby improving the heat generation and heat preservation effects of the warm and breathable shoes; at the same time, the heat-accumulating concave part 21 is formed by the enclosure of the moisture-removing part 22, and the moisture-removing part 22 can correspondingly absorb the sweat at the position of the heat-accumulating concave part 21 within its enclosed area, thereby improving the absorption efficiency of the moisture-removing part 22 for sweat; and, the heat-accumulating concave part 21 is densely arranged on the inner surface of the inner layer 2, which can not only ensure that the moisture-removing part 22 has a large enough contact area with the human body surface, but also improve the wrapping property of the heating part formed by the heat-accumulating concave part 21 on the wearing part, so as to achieve a balance between heat preservation and breathability and improve the wearing comfort of this fabric in a cold environment.

[0050] Preferably, in addition, referring to Figure 2 , in this embodiment, in order to achieve the dense arrangement of the heat-accumulating concave part 21, the shape of the moisture-removing part 22 is a regular hexagon; adjacent heat-accumulating concave parts 21 share one side of the corresponding moisture-removing part 22. The shape of the moisture-removing part 22 being a regular hexagon can ensure the dense arrangement of the heat-accumulating concave part 21 on the inner surface of the inner layer 2, without wasting the space on the inner surface of the inner layer 2 and improving the moisture-removing and heat-preserving performance.

[0051] And, the moisture-removing part 22 is formed by co-weaving a hydrophilic yarn and a heat-generating yarn in a complex filament twisted structure, and the co-weaving ratio of the hydrophilic yarn and the heat-generating yarn in the moisture-removing part 22 is 1:1. The moisture-removing part 22 is formed by co-weaving a heat-generating yarn and a hydrophilic yarn in a complex filament twisted structure. This co-weaving method can make the two yarns evenly and tightly wound and in contact, which is beneficial to the heat generation and heat preservation performance of the inner layer 2 to play a role, and at the same time does not affect the moisture-removing part 22 from absorbing sweat. The co-weaving ratio of the hydrophilic yarn and the heat-generating yarn in the moisture-removing part 22 is 1:1, and the ratio of the two is equal, which is beneficial to their joint action.

[0052] In addition, referring to Figure 1, the ventilation part 4 provided on the shoe upper is located at the front side positions on the left and right sides of the shoe upper corresponding to the ankle joint of the foot, which is a part where the foot moves frequently. The middle layer 3 of the ventilation part 4 is formed by ply knitting of elastic yarns and water-repellent yarns, and the middle layer 3 of this part does not contact the surface layer 1 and the inner layer 2. Therefore, the middle layer 3 of this part has a larger movement space. At the same time, the knitting density of the middle layer 3 of this part is also smaller than that of the middle layer 3 of other parts, which makes the middle layer 3 of this part have a better ventilation effect; when the foot moves, the shoe upper will also twist and stretch at the ventilation part 4 and its surrounding areas. At this time, the yarns of the middle layer 3 of the ventilation part 4 will be stretched apart, and larger gaps are formed between the yarns, thereby further improving the ventilation effect of this part. And when the foot is not moving, the elastic yarns can tighten the middle layer 3 of the ventilation part 4, so that the middle layer 3 can still provide good warmth retention and waterproof effects.

[0053] In this embodiment, the ventilation part 4 is inclined and extends relatively in the front-back direction. Specifically, the ventilation part 4 is generally in the shape of a parallelogram, which has two opposite long sides and two opposite short sides. Refer to Figure 1 , the long sides of the ventilation part 4 are inclined and extend from bottom to top and from front to back relative to the front-back direction, so as to better adapt to the movement mode of the foot and improve the adaptability of the shoe upper to the foot movement.

[0054] At the same time, refer to Figure 1 , the shoe upper is respectively provided with a plurality of the ventilation parts 4 on its left and right sides, and the plurality of the ventilation parts 4 located on the same side are arranged in sequence along the front-back direction, so as to improve the overall ventilation effect of the shoe upper. And, the thickness of the middle layer 3 of the ventilation part 4 is smaller than the thickness of the middle layer 3 of other parts. The smaller thickness can improve the ventilation effect of the middle layer 3 of this part and also improve the deformation ability of the middle layer 3 of this part.

[0055] It is easy to understand that the description of the knitting density of the surface layer 1, the middle layer 3 and the ventilation part 4 above refers to that under the condition of using the same number of yarns and the same knitting method, the part with a lower knitting density uses fewer yarns per unit area. As a result, compared with the part with a higher knitting density, there are larger gaps between the yarns. In this embodiment, knitting is carried out by a knitting method.

[0056] A pair of warm and breathable shoes provided by the present utility model provides functions of waterproofing, heat generation, warmth retention and moisture discharge by setting the surface layer 1, the inner layer 2, the middle layer 3 and the ventilation part 4, and improves the wearing comfort of using the shoes in a cold environment.

[0057] The description of the above specification and embodiments is used to explain the protection scope of the present utility model, but does not constitute a limitation to the protection scope of the present utility model. Modifications, equivalent replacements or other improvements to the embodiments of the present utility model or some of its technical features obtained by those of ordinary skill in the art through logical analysis, reasoning or limited experiments in combination with common general knowledge, ordinary technical knowledge in this field and / or the prior art under the inspiration of the present utility model or the above embodiments shall all be included within the protection scope of the present utility model.

Claims

1. A warm and breathable shoe, comprising a sole, characterized in that: It also includes a shoe upper, which is composited with the shoe sole, and the shoe upper is provided with a surface layer (1), a middle layer (3) and an inner layer (2) in sequence from the outside to the inside; The surface layer (1) is woven with water-repellent yarn to form a waterproof portion (11) with a closed texture, and is penetrated by ventilation holes (12) distributed at intervals; The middle layer (3) is woven with water-repellent yarn and is connected to the surface layer (1), and its weaving density is less than that of the surface layer (1); The inner layer (2) comprises a main body layer woven from heat-generating yarns and connected to the middle layer (3), and a plurality of moisture-discharging portions (22) woven from hydrophilic yarns and protruding from the inner surface of the main body layer; the moisture-discharging portions (22) are connected end to end, and the main body layer in the enclosed area is lower than the moisture-discharging portions (22) and forms heat-collecting recesses (21); all the heat-collecting recesses (21) are densely arranged on the inner surface of the inner layer (2); The shoe upper is provided with at least one ventilation portion (4) on the left and right sides thereof corresponding to the front side of the ankle joint of the foot. The middle layer (3) of the ventilation portion (4) is formed by knitting elastic yarn and water-repellent yarn in parallel, and its knitting density is smaller than the knitting density of the middle layer (3) outside the ventilation portion (4). At the same time, the middle layer (3) of the ventilation portion (4) is not connected to the surface layer (1) and the inner layer (2) belonging to the same ventilation portion (4).

2. A warm and breathable shoe as claimed in claim 1, characterized in that: The ventilation portion (4) is arranged to extend obliquely relative to the front-rear direction.

3. The warm and breathable shoes according to claim 2, characterized in that: The shoe upper is provided with a plurality of the ventilation parts (4) on the left and right sides thereof, respectively, and the plurality of the ventilation parts (4) located on the same side are arranged in sequence along the front-back direction.

4. A warm and breathable shoe as described in claim 3, wherein the thickness of the middle layer (3) of the upper outside the breathable portion (4) ranges from 0.5 mm to 1.5 mm, and the thickness of the middle layer (3) of the breathable portion (4) is less than the thickness of the middle layer (3) outside the breathable portion (4).

5. The warm and breathable shoes according to claim 4, characterized in that: The moisture dissipation portion (22) is in the shape of a regular hexagon; the adjacent heat-collecting recessed portions (21) on the inner layer (2) share a corresponding side of the moisture dissipation portion (22).

6. The warm and breathable shoes according to claim 5, characterized in that: The moisture discharge part (22) is formed by weaving hydrophilic yarn and heat-generating yarn in a multifilament twisted structure.

7. The warm and breathable shoes according to claim 6, characterized in that: The paralleling ratio of the hydrophilic yarn and the heat-generating yarn in the moisture-discharging part (22) is 1:

1.

8. The warm and breathable shoes according to any one of claims 1 to 7, characterized in that: The water-repellent yarn is made of polyester fiber treated with a water-repellent finishing agent.

9. The warm and breathable shoes according to any one of claims 1 to 7, characterized in that: The heating yarn is made of polyester fiber with far-infrared ceramic powder attached to the surface.

10. The warm and breathable shoes according to any one of claims 1 to 7, characterized in that: The hydrophilic yarn is made of acetate fiber containing hydrophilic groups and having a micro-groove structure on the surface.

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