A novel breathable fabric, shoe upper and manufacturing method thereof

Abstract

The present invention relates to a novel breathable fabric, comprising a fabric body integrally woven by a weft knitting machine, the fabric body having a bottom layer and a surface layer woven together, the fabric body having a perspective area, the surface layer corresponding to the perspective area being set as a first surface layer, the bottom layer corresponding to the perspective area being set as a first bottom layer, the first bottom layer at least comprising a first yarn, the first yarn having a connecting portion and an interlacing portion, the interlacing portion being woven into the first bottom layer, the connecting portion being interlaced on the first surface layer in a tuck manner and forming a first pattern between the first surface layer and the first bottom layer, a breathable mesh being formed on the first bottom layer by a woven manner, and the first surface layer being woven from transparent or translucent yarn. After adopting the technical solution of the present invention, the first pattern is not easily subject to wear and tear, and has a novel visual effect. The present invention also proposes a shoe upper made of the fabric. In the manufacturing method of the present invention, the aperture and stability of the breathable mesh can be enlarged by combining turning needles and tucks, thereby improving the breathability effect.

Description

Technical Field

[0001] The invention relates to a novel breathable fabric, a shoe upper and a manufacturing method thereof. Background Art

[0002] The double-layer upper woven by weft knitting machine generally includes a bottom layer and a surface layer compounded on the bottom layer. The surface layer and the bottom layer are woven together by connecting yarns, and the connecting yarns are interwoven in the surface layer and the bottom layer. In order to enrich the styles of the upper, colored yarns of different colors are often used. Through the design of jacquard patterns, the colored yarns are interwoven in the surface layer in a specific pattern. The traditional structure of this kind of upper is relatively compact, and the air permeability and softness and comfort of the fabric need to be further improved. In addition, the pattern is prominent on the surface of the upper, which is more susceptible to wear. There are more and more such uppers, and the homogeneity is serious, which makes it difficult to meet the diversified needs of the market.

[0003] In view of this, the inventor conducted in-depth research on the above-mentioned issues, and thus the present case was produced. Summary of the invention

[0004] The purpose of the present invention is to provide a breathable upper with better ventilation, less wear-resistant patterns, novel visuals and low color saturation. Another purpose of the present invention is to provide a method for making the breathable upper, which has the advantage of simple processing technology.

[0005] In order to achieve the above object, the present invention adopts such technical solution:

[0006] A novel breathable fabric comprises a fabric body woven integrally by a weft knitting machine, the fabric body comprising a bottom layer and a surface layer woven together, the fabric body comprising a perspective area, the surface layer corresponding to the perspective area being set as a first surface layer, the bottom layer corresponding to the perspective area being set as a first bottom layer, the first bottom layer comprising at least a first yarn, the first yarn comprising a connecting portion and an interlaced portion, the interlaced portion being woven into the first bottom layer, the connecting portion being interlaced on the first surface layer in a tuck manner and forming a first pattern between the first surface layer and the first bottom layer, a breathable mesh being formed on the first bottom layer by weaving, and the first surface layer being woven from transparent or translucent yarn.

[0007] As a preferred embodiment of the present invention, the transparent or semi-transparent yarn is the transparent polyester monofilament, transparent nylon monofilament or transparent TPU yarn.

[0008] As a preferred embodiment of the present invention, the transparent or semi-transparent yarns are interwoven in a plain weft stitch.

[0009] As a preferred embodiment of the present invention, the first bottom layer includes a plurality of coil rows, the plurality of coil rows are longitudinally sleeved together, each coil row includes a plurality of coils, and the coils corresponding to the breathable mesh are connected to the first surface layer by a stitch turning method.

[0010] As a preferred embodiment of the present invention, in a plurality of coil rows adjacent to the coil row in which the breathable mesh holes are arranged, the coils corresponding to the breathable mesh holes are woven in a tucked loop manner and expanded holes are formed around the breathable mesh holes.

[0011] As a preferred embodiment of the present invention, the first bottom layer further includes a second yarn, and the interlaced portion and the second yarn extend together in the same direction and are woven into the first bottom layer.

[0012] As a preferred embodiment of the present invention, the fabric body also includes a non-transparent area for enhancing supporting performance, the surface layer corresponding to the non-transparent area is set as the second surface layer, the bottom layer corresponding to the non-transparent area is set as the second bottom layer, the second surface layer is interwoven in a weft plain needle organization manner, the second bottom layer is interwoven in a weft plain needle organization manner, the second surface layer and the second bottom layer are connected together by connecting yarn, and the yarn used in the second surface layer is different from the yarn used in the first surface layer.

[0013] As a preferred embodiment of the present invention, the fabric body also includes an air layer, the surface layer corresponding to the air layer is set as the third surface layer, the bottom layer corresponding to the air layer is set as the third bottom layer, the third bottom layer is separated from the third surface layer, the third surface layer is woven from transparent or translucent yarn, and the third bottom layer includes at least a first woven area of ​​a first color and a second woven area of ​​a second color.

[0014] The shoe upper comprises a shoe upper body formed by cutting fabrics, the fabrics comprising a fabric body formed by integrally knitting by a weft knitting machine, the fabric body comprising a bottom layer and a surface layer knitted together, the fabric body comprising a perspective area, the surface layer corresponding to the perspective area being set as a first surface layer, the bottom layer corresponding to the perspective area being set as a first bottom layer, the first bottom layer comprising at least a first yarn, the first yarn comprising a connecting portion and an interlacing portion, the interlacing portion being knitted into the first bottom layer, the connecting portion being interlaced on the first surface layer in a tuck manner and forming a first pattern between the first surface layer and the first bottom layer, a breathable mesh being formed on the first bottom layer by knitting, the first surface layer being knitted by transparent or translucent yarns, the shoe upper body comprising a toe portion, a first wing and a second wing formed on the toe portion, a tongue opening and a shoe opening interconnected with each other being formed between the first wing and the second wing, the end of the first wing away from the toe portion forming a first connecting portion, the other end of the second wing away from the toe portion forming a second connecting portion cooperating with the first connecting portion.

[0015] The present invention also proposes a method for making a novel breathable fabric, the novel breathable fabric comprising a fabric body woven integrally by a circular knitting machine, the fabric body having a bottom layer and a surface layer woven together, the fabric body having a perspective area, the surface layer corresponding to the perspective area being set as a first surface layer, the bottom layer corresponding to the perspective area being set as a first bottom layer, the first bottom layer comprising at least a first yarn and a second yarn, the first yarn having a connecting portion and an interlacing portion, the interlacing portion and the second yarn extending together in the same direction and being woven into the first bottom layer, the connecting portion being interlaced on the first surface layer in a tuck manner and forming a first pattern between the first surface layer and the first bottom layer, a breathable mesh being formed on the first bottom layer by a woven manner, the first surface layer being woven from transparent or translucent yarn, and the fabric body being woven in the following manner:

[0016] In the first loop:

[0017] In the first route, the knitting needles of the needle cylinder feed the first yarn and the second yarn, the knitting needles of the needle cylinder carry the first yarn and the second yarn to knit simultaneously to form a first bottom layer, and the knitting needles of the needle disk feed the first yarn to knit in a tuck loop manner;

[0018] In the second route, the knitting needles of the needle cylinder feed the third yarn to knit in a loop to form the first bottom layer. At the position where the breathable mesh needs to be formed, the knitting needles of the needle disk hook the third yarn to form a loop, tuck or not knit, and the loops on the knitting needles of the needle cylinder corresponding to the breathable mesh are transferred to the corresponding knitting needles of the needle disk by turning needles;

[0019] In the third route, a transparent or semi-transparent yarn is fed to the knitting needles of the needle plate and knitted in a loop to form a first surface layer on the first yarn of the first route;

[0020] In the second cycle, in the first route, the knitting needles of the needle cylinder feed the first yarn and the second yarn, the knitting needles of the needle cylinder carry the first yarn and the second yarn to knit simultaneously to form the first bottom layer, the knitting needles of the needle disk feed the first yarn to knit in a tuck manner, and the knitting needles on the needle cylinder corresponding to the air-permeable mesh holes feed the first yarn and the second yarn to knit in a tuck manner to form the expanded hole portion;

[0021] In the second route, the knitting needles of the needle cylinder feed the third yarn to knit in a loop to form the first bottom layer, and the knitting needles of the needle cylinder corresponding to the breathable mesh holes feed the third yarn to knit in a tuck loop to form the expanded hole portion;

[0022] In the third route, the transparent or translucent yarn is fed into the knitting needles of the needle plate and knitted in a loop to form a first surface layer on the first yarn of the first route.

[0023] In the third cycle, in the first route, the knitting needles of the needle cylinder feed the first yarn and the second yarn, the knitting needles of the needle cylinder carry the first yarn and the second yarn to knit simultaneously to form the first bottom layer, the knitting needles of the needle disk feed the first yarn to knit in a tuck manner, and the knitting needles on the needle cylinder corresponding to the air-permeable mesh holes feed the first yarn and the second yarn to knit in a tuck manner to form the expanded hole portion;

[0024] In the second route, the knitting needles of the needle cylinder feed the third yarn to knit in a loop to form the first bottom layer, and the knitting needles of the needle cylinder corresponding to the breathable mesh holes feed the third yarn to knit in a tuck loop to form the expanded hole portion;

[0025] In the third route, the transparent or translucent yarn is fed into the knitting needles of the needle plate and knitted in a loop to form a first surface layer on the first yarn of the first route.

[0026] Repeat the first to third loops until the desired area is knitted.

[0027] After adopting the technical solution of the present invention, the main part of the first pattern is formed between the first surface layer and the first bottom layer, which is not easily subject to wear and tear. The first surface layer is woven from transparent or translucent yarns, and the main part of the first pattern presents a hazy feeling under the first surface layer, which has an elegant, indifferent and novel visual effect. In addition, the first bottom layer is woven to form a breathable mesh, which improves the breathability of the entire fabric. The present invention also proposes a shoe upper made of the fabric, which has a breathable effect. In the manufacturing method of the present invention, the aperture and stability of the breathable mesh can be enlarged by combined knitting of needle turning and double-layer tucking, thereby improving the breathability. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a schematic diagram of the structure of the present invention.

[0029] Figure 2 It is a schematic diagram of the structure of a part of the present invention.

[0030] Figure 3 Schematic diagram of the local coil structure of the first bottom layer in the present invention (position without air-permeable mesh).

[0031] Figure 4 It is the weaving principle diagram of the present invention.

[0032] In the figure:

[0033] Upper body 100 First wing 1001

[0034] Second wing 1002 Toe 1003

[0035] First connection part 1004 Second connection part 1005

[0036] Tongue 1006 Shoe mouth 1007

[0037] Surface layer 10 Bottom layer 20

[0038] First surface layer 11 mesh 12

[0039] First bottom layer 21 Breathable mesh 22

[0040] First yarn 23 Second yarn 24

[0041] Third yarn 25 interlaced portion 231

[0042] Connecting portion 232 Second surface layer 101

[0043] Third surface layer 102 perspective area 200

[0044] Second bottom floor 201 Third bottom floor 202

[0045] First knitting area 203 Second knitting area 204

[0046] Perspective area 200 Non-perspective area 300 DETAILED DESCRIPTION

[0047] In order to further explain the technical solution of the present invention, it is described in detail below with reference to the accompanying drawings.

[0048] Reference Figures 1 to 4 A novel breathable fabric includes a fabric body integrally woven by a weft knitting machine (specifically, a circular knitting machine or a flat knitting machine), the fabric body having a bottom layer 20 and a surface layer 10 woven together, and the fabric body having a perspective area 200. In the present invention, the upper body 100 is formed by cutting the fabric.

[0049] In this embodiment, the upper body 100 includes a toe portion 1003, a first wing 1001 and a second wing 1002 formed on the toe portion 1003, a tongue opening 1006 and a shoe opening 1007 which are interconnected are formed between the first wing 1001 and the second wing 1002, the end of the first wing 1001 away from the toe portion 1003 forms a first connecting portion 104, and the other end of the second wing 1002 away from the toe portion 1003 forms a second connecting portion 105 which cooperates with the first connecting portion 104. After the upper body 100 is installed on the sole, the first connecting portion 104 and the second connecting portion 105 are connected together to form a heel.

[0050] In the present invention, the position of the perspective area 200 can be set according to the design requirements of the shoe. Figure 1 In the figure, it is shown that the perspective area 200 is set at the toe portion 1003 . The perspective area 200 of the present invention is not limited to the toe portion 1003 , and the perspective area 200 can also be set on both sides of the tongue opening 1006 or both sides of the shoe opening 1007 .

[0051] The surface layer 10 corresponding to the perspective area 200 is set as the first surface layer 11, and the bottom layer 20 corresponding to the perspective area 200 is set as the first bottom layer 21. The first bottom layer 21 at least includes a first yarn 23, and the first yarn 23 has a connecting portion 232 and an interwoven portion 231. The interwoven portion 231 is woven into the first bottom layer 21. The connecting portion 232 is interwoven on the first surface layer 11 in a loop manner and forms a first pattern between the first surface layer 11 and the first bottom layer 21. A breathable mesh 22 is formed on the first bottom layer 21 by weaving. The first surface layer 11 is woven from transparent or translucent yarn.

[0052] As a preferred embodiment of the present invention, the transparent or semi-transparent yarn is the transparent polyester monofilament, transparent nylon monofilament or transparent TPU yarn. In the present invention, the diameter of the monofilament can be 0.08 to 0.2 mm, the monofilament is relatively thin, the weaving method is knitting, and the coil formed by the monofilament has a mesh 12.

[0053] As a preferred embodiment of the present invention, the transparent or semi-transparent yarns are interwoven in a plain weft stitch.

[0054] As a preferred embodiment of the present invention, the first bottom layer 21 includes a plurality of coil rows, which are longitudinally sleeved together, each coil row includes a plurality of coils, and the coils corresponding to the breathable mesh 22 are connected to the first surface layer 11 by stitch turning.

[0055] As a preferred embodiment of the present invention, in a plurality of coil rows adjacent to the coil row in which the breathable mesh 22 is provided (four coil rows in the embodiment), the coils corresponding to the breathable mesh 22 are woven in a tucked loop manner on the first bottom layer 21 and an expanded hole portion is formed around the breathable mesh 22.

[0056] As a preferred embodiment of the present invention, the first bottom layer 21 further includes a second yarn 24 , and the interlaced portion 231 and the second yarn 24 extend together in the same direction and are woven into the first bottom layer 21 .

[0057] As a preferred embodiment of the present invention, the upper body 100 further includes a non-perspective area 300 for enhancing support performance, the surface layer 10 corresponding to the non-perspective area 300 is set as the second surface layer 101, the bottom layer 20 corresponding to the non-perspective area 300 is set as the second bottom layer 201, the second surface layer 101 is interwoven in a weft plain needle organization mode, the second bottom layer 201 is interwoven in a weft plain needle organization mode, the second surface layer 101 and the second bottom layer 201 are connected together by connecting yarn, and the yarn used in the second surface layer 101 is different from the yarn used in the first surface layer 11. The connecting yarn in the present invention can be the yarn in the second surface layer 101, the yarn in the second surface layer 101 is looped in the second bottom layer 201, so that the second surface layer 101 and the second bottom layer 201 are pulled together, and the yarn can also be the yarn in the second bottom layer 201, the yarn in the second bottom layer 201 is looped in the second surface layer 101, so that the second bottom layer 201 and the second surface layer 101 are pulled together.

[0058] As a preferred embodiment of the present invention, the upper body also includes an air layer, the surface layer 10 corresponding to the air layer is set as a third surface layer 102, the bottom layer 20 corresponding to the air layer is set as a third bottom layer 202, the third bottom layer 202 is separately arranged from the third surface layer 102, the third surface layer 102 is woven from transparent or translucent yarn, the third bottom layer 202 includes at least a first weaving area 203 of a first color and a second weaving area 204 of a second color, the first weaving area 203 and the second weaving area 204 can be seen through the third surface layer 102, the first weaving area 203 and the second weaving area 204 adopt different colors, thereby forming a color changing effect.

[0059] Specifically, refer to Figure 4 In the figure, the symbol at C indicates knitting in a needle cylinder, the symbol at D indicates knitting in a needle disk, the symbol at E indicates knitting in a needle disk, and the symbol at F indicates knitting in a needle cylinder. Taking a circular knitting machine as an example, the present invention can be knitted in the following manner:

[0060] In the first loop,

[0061] In the first route, the knitting needles of the needle cylinder feed the first yarn 23 and the second yarn 24 to knit in a loop to form the first bottom layer 21 (specifically, a part of the first bottom layer 21). Specifically, the knitting needles of the needle cylinder carry the first yarn 23 and the second yarn 24 to knit simultaneously, and the knitting needles of the needle disk feed the first yarn 23 to knit in a tuck loop manner, which reflects Figure 4 At box a;

[0062] In the second route, the knitting needles of the needle cylinder feed the third yarn 25 to knit in a loop to form the first bottom layer 21 (specifically, a part of the first bottom layer 21). At the position where the breathable mesh 22 needs to be formed, the knitting needles of the needle disk (the knitting needles at A) hook the third yarn 25 to form a loop, gather loops or not knit (loop formation in the embodiment), and the loops on the knitting needles of the needle cylinder (called the hole-forming knitting needles, i.e., the knitting needles at B) corresponding to the breathable mesh 22 are transferred to the knitting needles at A of the needle disk by the needle transfer (also called the loop transfer) method;

[0063] In the third route, a transparent or translucent yarn is fed into the knitting needles of the needle disk and woven in a loop to form a first surface layer 11 on the first yarn 23 of the first route.

[0064] In the second cycle, in the first route, the knitting needles of the needle cylinder feed the first yarn 23 and the second yarn 24 to knit in a loop to form the first bottom layer 21 (specifically, a part of the first bottom layer 21). Specifically, the knitting needles of the needle cylinder carry the first yarn 23 and the second yarn 24 to knit simultaneously, the knitting needles of the needle disk feed the first yarn 23 to knit in a tuck loop manner, and the hole-forming knitting needles on the needle cylinder feed the first yarn 23 and the second yarn 24 to knit in a tuck loop manner to form the expanded hole portion;

[0065] In the second route, the knitting needles of the needle cylinder feed the third yarn 25 to knit in a looping manner to form the first bottom layer 21 (specifically, a portion of the first bottom layer 21), and the hole-forming knitting needles of the needle cylinder feed the third yarn 25 to knit in a tuck manner to form the expanded hole portion;

[0066] In the third route, a transparent or translucent yarn is fed into the knitting needles of the needle disk and woven in a loop to form a first surface layer 11 on the first yarn 23 of the first route.

[0067] In the third cycle, in the first route, the knitting needles of the needle cylinder feed the first yarn 23 and the second yarn 24 to knit in a loop to form the first bottom layer 21 (specifically, a part of the first bottom layer 21). Specifically, the knitting needles of the needle cylinder carry the first yarn 23 and the second yarn 24 to knit simultaneously, the knitting needles of the needle disk feed the first yarn 23 to knit in a tuck loop manner, and the hole-forming knitting needles on the needle cylinder feed the first yarn 23 and the second yarn 24 to knit in a tuck loop manner to form the expanded hole portion;

[0068] In the second route, the knitting needles of the needle cylinder feed the third yarn 25 to knit in a looping manner to form the first bottom layer 21 (specifically, a portion of the first bottom layer 21), and the hole-forming knitting needles of the needle cylinder feed the third yarn 25 to knit in a tuck manner to form the expanded hole portion;

[0069] In the third route, a transparent or translucent yarn is fed into the knitting needles of the needle disk and woven in a loop to form a first surface layer 11 on the first yarn 23 of the first route.

[0070] Repeat the first to third loops until the desired area is knitted.

[0071] The product form of the present invention is not limited to the illustrations and embodiments of this case. Any appropriate changes or modifications made by anyone with similar ideas should be deemed to be within the patent scope of the present invention.

Claims

1. A breathable fabric, comprising a fabric body integrally woven by a weft knitting machine, the fabric body having a bottom layer and a surface layer woven together, characterized in that: The fabric body has a perspective area, the surface layer corresponding to the perspective area is set as a first surface layer, the bottom layer corresponding to the perspective area is set as a first bottom layer, the first bottom layer at least includes a first yarn and a second yarn, the first yarn has a connecting portion and an interlaced portion, the interlaced portion and the second yarn extend together in the same direction and are woven into the first bottom layer, the connecting portion is interlaced on the first surface layer in a tuck manner and forms a first pattern between the first surface layer and the first bottom layer, a breathable mesh is formed on the first bottom layer by weaving, and the first surface layer is woven from transparent or translucent yarn; The first bottom layer includes a plurality of coil rows, the plurality of coil rows are sleeved together in the longitudinal direction, each coil row includes a plurality of coils, and the coils corresponding to the breathable mesh are connected to the first surface layer in a needle-turning manner; In a plurality of coil rows adjacent to the coil row in which the breathable mesh holes are arranged, the coils corresponding to the breathable mesh holes are woven in a tucked loop manner and an expanded hole portion is formed around the periphery of the breathable mesh holes; The fabric body is woven in the following way: In the first loop: In the first route, the knitting needles of the needle cylinder feed the first yarn and the second yarn, the knitting needles of the needle cylinder carry the first yarn and the second yarn to knit simultaneously to form a first bottom layer, and the knitting needles of the needle disk feed the first yarn to knit in a tuck loop manner; In the second route, the knitting needles of the needle cylinder feed the third yarn to knit in a loop to form the first bottom layer. At the position where the breathable mesh needs to be formed, the knitting needles of the needle disk hook the third yarn to form a loop, tuck or not knit, and the loops on the knitting needles of the needle cylinder corresponding to the breathable mesh are transferred to the corresponding knitting needles of the needle disk by turning needles; In the third route, a transparent or semi-transparent yarn is fed to the knitting needles of the needle plate and knitted in a loop to form a first surface layer on the first yarn of the first route; In the second cycle, in the first route, the knitting needles of the needle cylinder feed the first yarn and the second yarn, the knitting needles of the needle cylinder carry the first yarn and the second yarn to knit simultaneously to form the first bottom layer, the knitting needles of the needle disk feed the first yarn to knit in a tuck manner, and the knitting needles on the needle cylinder corresponding to the air-permeable mesh holes feed the first yarn and the second yarn to knit in a tuck manner to form the expanded hole portion; In the second route, the knitting needles of the needle cylinder feed the third yarn to knit in a loop to form the first bottom layer, and the knitting needles of the needle cylinder corresponding to the breathable mesh holes feed the third yarn to knit in a tuck loop to form the expanded hole portion; In the third route, a transparent or semi-transparent yarn is fed to the knitting needles of the needle plate and knitted in a loop to form a first surface layer on the first yarn of the first route; In the third cycle, in the first route, the knitting needles of the needle cylinder feed the first yarn and the second yarn, the knitting needles of the needle cylinder carry the first yarn and the second yarn to knit simultaneously to form the first bottom layer, the knitting needles of the needle disk feed the first yarn to knit in a tuck manner, and the knitting needles on the needle cylinder corresponding to the air-permeable mesh holes feed the first yarn and the second yarn to knit in a tuck manner to form the expanded hole portion; In the second route, the knitting needles of the needle cylinder feed the third yarn to knit in a loop to form the first bottom layer, and the knitting needles of the needle cylinder corresponding to the breathable mesh holes feed the third yarn to knit in a tuck loop to form the expanded hole portion; In the third route, a transparent or semi-transparent yarn is fed to the knitting needles of the needle plate and knitted in a loop to form a first surface layer on the first yarn of the first route; Repeat the first to third loops until the desired area is knitted.

2. A breathable fabric according to claim 1, characterized in that: The transparent or semi-transparent yarn is transparent polyester monofilament, transparent nylon monofilament or transparent TPU yarn.

3. A breathable fabric as claimed in claim 2, characterized in that: The transparent or semi-transparent yarns are interwoven in a plain weft stitch.

4. A breathable fabric according to claim 1, characterized in that: The fabric body also includes a non-transparent area for enhancing supporting performance. The surface layer corresponding to the non-transparent area is set as the second surface layer, and the bottom layer corresponding to the non-transparent area is set as the second bottom layer. The second surface layer is interwoven in a weft plain needle organization manner, and the second bottom layer is interwoven in a weft plain needle organization manner. The second surface layer and the second bottom layer are connected together by connecting yarn, and the yarn used in the second surface layer is different from the yarn used in the first surface layer.

5. The breathable fabric according to claim 1, characterized in that: The fabric body also includes an air layer, the surface layer corresponding to the air layer is set as a third surface layer, the bottom layer corresponding to the air layer is set as a third bottom layer, the third bottom layer is separated from the third surface layer, the third surface layer is woven from transparent or translucent yarn, and the third bottom layer includes at least a first woven area of ​​a first color and a second woven area of ​​a second color.

6. The upper is characterized by: It comprises an upper body cut from the breathable fabric as claimed in claim 1, the upper body comprising a toe portion, a first wing and a second wing formed on the toe portion, a tongue opening and a shoe opening which are interconnected are formed between the first wing and the second wing, a first connecting portion is formed at one end of the first wing away from the toe portion, and a second connecting portion which cooperates with the first connecting portion is formed at the other end of the second wing away from the toe portion.

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