Outdoor cold-proof jacket and cold-proof suit

Abstract

The invention belongs to the technical field of garment manufacturing, and discloses an outdoor cold-proof jacket and a cold-proof suit. The outdoor cold-proof jacket comprises a heating layer, a warm-keeping layer, a cold-proof layer and a windproof layer which are sequentially sewn from inside to outside, the windproof layer is made of water-repellent fibers, the cold-proof layer is made of aerogel, and the warm-keeping layer is made of warm-keeping fibers; the heating layer comprises a back covering part and a front covering part, the back covering part is used for being attached to the back of the human body, the front covering part is used for being attached to the chest and the abdomen of the human body, the back covering part is made of a silver-plated film, and the front covering part is made of far infrared fibers. The outdoor cold-proof jacket is composed of four layers of structures from inside to outside, and the four layers of structures are matched with one another to achieve the functional effects of temperature rising, temperature locking, heat preservation, wind resistance and water resistance of the outdoor cold-proof jacket, so that the heat preservation performance of the outdoor cold-proof jacket and the wearing comfort of a human body are greatly improved.

Description

Technical Field

[0001] The invention relates to the technical field of clothing manufacturing, in particular to an outdoor cold-proof coat and a cold-proof suit. Background Art

[0002] Down jackets are clothes filled with down fillings. They are light, soft, and warm, and are indispensable for people in winter. Ordinary down jackets are generally suitable for weather not exceeding -15℃, which can meet the normal wear of people in winter. However, for people living in extremely cold or polar regions, the above ordinary down jackets can no longer meet the needs of keeping warm in extremely cold and severe weather.

[0003] Therefore, it is urgent to design a kind of cold-proof clothing to solve the above problems. Summary of the invention

[0004] The purpose of the present invention is to provide an outdoor cold-proof jacket and a cold-proof suit, which have good warm-keeping effect and can meet the needs of keeping warm in extremely cold and severe weather.

[0005] To achieve this object, the present invention adopts the following technical solutions:

[0006] An outdoor cold-proof jacket, comprising a temperature-raising layer, a heat-insulating layer, a cold-proof layer and a wind-proof layer which are sequentially sewn from the inside to the outside, wherein the wind-proof layer is made of water-repellent fiber, the cold-proof layer is made of aerogel, and the heat-insulating layer is made of heat-insulating fiber;

[0007] The heating layer comprises a back covering part and a front covering part, wherein the back covering part is used to be in contact with the back of a human body, and the front covering part is used to be in contact with the chest and abdomen of a human body. The back covering part is made of a silver-plated film, and the front covering part is made of far-infrared fiber.

[0008] Preferably, the outdoor cold-proof jacket further comprises a first heating plate, which is arranged between the cold-proof layer and the thermal insulation layer opposite to the back covering portion, and is used for heating the back covering portion.

[0009] Preferably, the outdoor cold-proof jacket further comprises a second heating plate, which is arranged between the cold-proof layer and the thermal insulation layer opposite to the front covering portion, and is used for heating the front covering portion.

[0010] Preferably, the outdoor cold-proof jacket further comprises a reinforcement layer, wherein the reinforcement layer is arranged between the cold-proof layer and the windproof layer corresponding to the elbow of a human body, and the reinforcement layer is made of the thermal insulation fiber.

[0011] Preferably, the warming layer further comprises a breathable portion, which is sewn between the back covering portion and the front covering portion, and is used to fit against the armpits and side waist of a human body, and is made of breathable polar fleece.

[0012] Preferably, the hem of the warming layer is provided with a tightness adjusting member, and the tightness adjusting member is used to adjust the tightness of the hem of the warming layer.

[0013] Preferably, a waterproof adhesive layer is pressed on the seams of the windproof layer.

[0014] A cold-proof suit comprises the above-mentioned outdoor cold-proof jacket and cold-proof trousers, wherein the cold-proof trousers comprise a warming layer, a thermal insulation layer, a cold-proof layer and a windproof layer which are sequentially sewn from the inside to the outside, wherein the windproof layer is made of water-repellent fiber, the cold-proof layer is made of aerogel, the thermal insulation layer is made of thermal insulation fiber, and the warming layer is made of a silver-plated film or far-infrared fiber.

[0015] Preferably, the cold-proof pants further include a third heating sheet and a fourth heating sheet, and both the third heating sheet and the fourth heating sheet can emit heat;

[0016] The third heating plate is arranged between the cold-proof layer and the warm-keeping layer, facing the human thigh; the fourth heating plate is arranged between the cold-proof layer and the warm-keeping layer, facing the human waist.

[0017] Preferably, the cold-proof pants further include a reinforcement layer, wherein the reinforcement layer is arranged between the cold-proof layer and the windproof layer corresponding to the human body knee, and the reinforcement layer is made of the thermal insulation fiber.

[0018] The beneficial effects of the present invention are:

[0019] The outdoor cold-proof jacket provided by the present invention comprises a warming layer, a thermal insulation layer, a cold-proof layer and a windproof layer which are sequentially sewn from the inside to the outside, wherein the windproof layer is made of water-repellent fiber, which has good water-repellent and windproof properties, so the outdoor cold-proof jacket can prevent being wetted by rain and snow and resist rainwater from invading the inside, thereby keeping the user dry and comfortable; since the cold-proof layer is made of aerogel, the aerogel has a soft texture and excellent thermal insulation properties, so the warm-keeping effect of the outdoor cold-proof jacket can be greatly improved; since the thermal insulation layer is made of thermal insulation fiber, the thermal insulation fiber has a stable structure and a hollow skeleton, which can effectively lock the static electricity inside The air-blocking, thermal insulation layer and cold-proof layer cooperate to isolate the invasion of external cold air and lock the internal human body heat, thereby greatly improving the thermal comfort of the human body; since the back covering part of the warming layer is made of a silver-plated film, the silver-plated film is attached to the back of the human body and has the characteristics of high reflectivity, the back covering part can reflect the heat emitted from the back of the human body, thereby reducing the loss of body surface heat and keeping the back warm and comfortable; since the front covering part of the warming layer is made of far-infrared fiber, the far-infrared fiber is attached to the chest and abdomen of the human body, and the far-infrared fiber can emit far-infrared rays, so the far-infrared fiber can achieve the function of far-infrared heating and warmth preservation when it is close to the human body. The outdoor cold-proof jacket is composed of a four-layer structure from the inside to the outside, and the four-layer structure cooperates with each other to form the functional effects of the outdoor cold-proof jacket of heating, locking temperature, heat preservation, windproof and waterproof, thereby greatly improving the warmth performance of the outdoor cold-proof jacket and the comfort of human body.

[0020] The cold-proof suit provided by the present invention comprises the above-mentioned outdoor cold-proof jacket and cold-proof pants, which can provide a warm and comfortable wearing experience for the user, and the cold-proof suit is light to wear and has strong cold-proof ability, and is suitable for long-term outdoor work and outdoor hiking. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 is a front structural view of an outdoor cold-proof jacket provided by a specific embodiment of the present invention;

[0022] Figure 2 is a back structural view of an outdoor cold-proof jacket provided by a specific embodiment of the present invention;

[0023] Figure 3 It is a schematic structural diagram of a temperature-raising layer of an outdoor cold-proof jacket provided in a specific embodiment of the present invention;

[0024] Figure 4 This is a disassembled diagram of the structure of each layer of the outdoor cold-proof jacket facing the back of the human body provided by a specific embodiment of the present invention;

[0025] Figure 5 is a front structural view of cold-proof pants provided by a specific embodiment of the present invention;

[0026] Figure 6 It is a back structural view of cold-proof pants provided by a specific embodiment of the present invention.

[0027] In the figure:

[0028] 1-warming layer; 11-back cover; 12-front cover; 13-ventilation part; 14-elastic adjustment part;

[0029] 2- Warmth layer;

[0030] 3-Cold-proof layer;

[0031] 4- Windproof layer;

[0032] 5- first heating plate;

[0033] 6- second heating plate;

[0034] 7- the third heating plate;

[0035] 8-Fourth heating plate. DETAILED DESCRIPTION

[0036] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the present invention, rather than to limit the present invention. It should also be noted that, for ease of description, only parts related to the present invention, rather than all structures, are shown in the accompanying drawings.

[0037] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected", and "fixed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0038] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0039] In the description of this embodiment, the terms "upper", "lower", "right", "left" and other directions or positional relationships are based on the directions or positional relationships shown in the drawings, and are only for the convenience of description and simplification of operation, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operate in a specific direction, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are only used to distinguish in the description and have no special meaning.

[0040] like Figure 1 , Figure 2 as well as Figure 4 As shown, the present invention provides an outdoor cold-proof jacket, which includes a warming layer 1, a thermal insulation layer 2, a cold-proof layer 3 and a windproof layer 4 which are sewn in sequence from the inside to the outside, the windproof layer 4 is made of water-repellent fiber, the cold-proof layer 3 is made of aerogel, and the thermal insulation layer 2 is made of thermal insulation fiber; the warming layer 1 includes a back covering portion 11 and a front covering portion 12, the back covering portion 11 is used to be in contact with the back of the human body, and the front covering portion 12 is used to be in contact with the chest and abdomen of the human body, the back covering portion 11 is made of a silver-plated film, and the front covering portion 12 is made of far-infrared fiber. In this embodiment, the windproof layer 4 is made of water-repellent fiber, which has good water-repellent and windproof properties. Therefore, the outdoor cold-proof jacket can prevent being wetted by rain and snow and resist rainwater from invading the interior, thereby keeping the user dry and comfortable; since the cold-proof layer 3 is made of aerogel, which has a soft texture and excellent thermal insulation properties, it can greatly improve the warmth retention effect of the outdoor cold-proof jacket; since the thermal insulation layer 2 is made of thermal insulation fiber, the thermal insulation fiber has a stable structure and a hollow skeleton, which can effectively lock the static air inside. The thermal insulation layer 2 cooperates with the cold-proof layer 3 to isolate the outside The intrusion of cold air can be achieved and the internal body heat can be locked, thereby greatly improving the thermal comfort of the human body; since the back covering part 11 of the warming layer 1 is made of a silver-plated film, the silver-plated film is attached to the back of the human body and has the characteristics of high reflectivity, the back covering part 11 can reflect the heat emitted from the back of the human body, thereby reducing the loss of body surface heat and keeping the back warm and comfortable; since the front covering part 12 of the warming layer 1 is made of far-infrared fiber, the far-infrared fiber is attached to the chest and abdomen of the human body, and the far-infrared fiber can emit far-infrared rays, so the far-infrared fiber can achieve the function of far-infrared heating and warmth preservation after being close to the human body. The outdoor cold-proof jacket is composed of a four-layer structure from the inside to the outside, and the four-layer structure cooperates with each other to form the functional effects of the outdoor cold-proof jacket of heating, locking temperature, heat preservation, windproof and waterproof, thereby greatly improving the warmth performance of the outdoor cold-proof jacket and the comfort of human wearing.

[0041] Specifically, the fabric of the windproof layer 4 is woven from fine fibers and treated with water repellent. Water repellent treatment is a commonly used process in this field. The surface tension of the fibers is reduced by using chemical water repellents, so that water droplets cannot wet the fiber surface; the cold-proof layer 3 is made of aerogel. Aerogel refers to a nano-scale porous solid material formed by a sol-gel method and a certain drying method to replace the liquid phase in the gel with gas. Aerogel has been gradually applied to the field of clothing in recent years due to its low thermal conductivity. In addition, aerogel is light and soft, which reduces the overall weight of the outdoor cold-proof jacket while achieving a good thermal insulation effect, making it convenient for users to wear it for a long time in a cold environment; the thermal insulation fiber in the thermal insulation layer 2 is a differentiated fiber. Differentiated fiber refers to a fiber that is physically or chemically modified on the basis of the original ordinary fiber and has a different fiber morphology and physical and chemical properties. The interior of the differentiated fiber has a hollow fiber skeleton and an ultrafine fiber composite network structure, which can effectively retain and lock still air, thereby improving the fluffiness and thermal insulation effect of the clothing.

[0042] Furthermore, if Figure 2 and Figure 4 As shown, the outdoor cold-proof jacket further includes a first heating plate 5, which is disposed between the cold-proof layer 3 and the heat-insulating layer 2 facing the back cover 11, and is used to heat the back cover 11. In this embodiment, the outdoor cold-proof jacket further includes a mobile power supply and a connecting wire, which is placed in a pocket and connected to the first heating plate 5 through the connecting wire to energize the first heating plate 5. After being energized, the first heating plate 5 heats up and radiates heat to the outside, thereby heating the back cover 11.

[0043] Furthermore, if Figure 1 As shown, the outdoor cold-proof jacket further includes a second heating plate 6, which is arranged between the cold-proof layer 3 and the heat-insulating layer 2 opposite to the front covering portion 12, and is used to heat the front covering portion 12. In this embodiment, the second heating plate 6 is connected to the mobile power supply through a connecting wire, and the second heating plate 6 can heat up and emit heat to the outside after being powered on, thereby heating the front covering portion 12.

[0044] Specifically, after the user turns on the mobile power supply, the first heating plate 5 and the second heating plate 6 can heat up simultaneously and heat the back cover 11 and the front cover 12 respectively; in order to better meet the needs of the user, a gear knob is provided on the connecting wire to achieve multi-level temperature adjustment.

[0045] The specific structure and material of the first heating plate 5 and the second heating plate 6 can be set according to actual needs, as long as the function of heating after power is turned on can be realized. For example, the first heating plate 5 and the second heating plate 6 are both made of graphene electric heating film, which is a commonly used heating product in the field, has extremely high power-heat radiation conversion efficiency, and has the advantages of high temperature resistance, good flexibility and strong antioxidant ability, etc. It can also be washed with clothes without having to be removed separately for cleaning.

[0046] Furthermore, the outdoor cold-proof jacket also includes a reinforcement layer, which is arranged between the cold-proof layer 3 and the windproof layer 4 corresponding to the human elbow, and the reinforcement layer is made of thermal insulation fiber; it can be understood that the fat layer at the human elbow is thinner than that of other parts of the body, so the outdoor cold-proof jacket is provided with a reinforcement layer made of thermal insulation fiber at the elbow position, which can meet the thermal insulation requirements of the weak links of the human body; specifically, the reinforcement layer is sandwiched between the cold-proof layer 3 and the windproof layer 4, and the reinforcement layer is made of thermal insulation fiber of the same material as the thermal insulation layer 2.

[0047] Specifically, Figure 3 As shown, the warming layer 1 also includes a breathable portion 13, which is sewn between the back covering portion 11 and the front covering portion 12. The breathable portion 13 is used to cover the armpits and side waist of the human body. The breathable portion 13 is made of breathable polar fleece. The polar fleece is soft and skin-friendly, and has good air permeability. It can discharge sweat, water vapor, etc. generated during human activities in time to keep the armpits, side waist and other parts of the human body dry and comfortable to the greatest extent, and avoid the unpleasant experience of dampness and coldness brought to the user due to the inability to remove moisture; in order to better meet the needs of users, the polar fleece includes a front piece and a back piece, and the front piece and the back piece are connected by a zipper at the armpit position, and the user can adjust the zipper according to his or her own sweating situation.

[0048] Furthermore, if Figure 3 As shown, the hem of the warming layer 1 is provided with an elastic adjusting member 14, which is used to adjust the tightness of the hem of the warming layer 1 so that the hem of the warming layer 1 can fit tightly against the waist and abdomen of the human body to prevent cold air from entering.

[0049] The structure of the elastic adjustment member 14 can be set according to actual needs, as long as it can adjust the tightness of the hem of the warming layer 1. For example, the elastic adjustment member 14 includes an elastic band and an adjustment buckle commonly used in the art, the elastic band is passed through the inside of the hem of the warming layer 1, and the adjustment buckle is clamped on the elastic band. The user can pull or loosen the elastic band by pressing a button on the adjustment buckle, thereby changing the length of the elastic band inside the hem, thereby achieving the purpose of adjusting the tightness of the hem.

[0050] Furthermore, a waterproof adhesive layer is applied to the seams of the windproof layer 4. In this embodiment, the waterproof adhesive layer can prevent water droplets from penetrating into the clothes from the seams of the windproof layer 4, further improving the waterproof effect of the outdoor cold-proof jacket; at the same time, because the waterproof adhesive layer is applied to the seams by hot-melt, the waterproof adhesive layer strengthens the anti-pulling ability of the seams, thereby improving the durability and reliability of the outdoor cold-proof jacket.

[0051] The present invention also provides a cold-proof suit, which includes the above-mentioned outdoor cold-proof jacket and cold-proof pants. The cold-proof pants include a warming layer 1, a thermal insulation layer 2, a cold-proof layer 3 and a windproof layer 4 which are sewn sequentially from the inside to the outside. The windproof layer 4 is made of water-repellent fiber, the cold-proof layer 3 is made of aerogel, the thermal insulation layer 2 is made of thermal insulation fiber, and the warming layer 1 is made of far-infrared fiber. Specifically, the cold-proof pants have the same structure as the outdoor cold-proof jacket, and are both sewn from a four-layer structure. When a user wears the outdoor cold-proof jacket and the cold-proof pants together, the effects of warming, locking in temperature, keeping warm, and being windproof and waterproof can be produced. The cold-proof suit is light to wear and comfortable to exercise in, and is suitable for long-term outdoor work, outdoor hiking, etc.

[0052] Furthermore, if Figure 5 and Figure 6 As shown, the cold-proof pants also include a third heating plate 7 and a fourth heating plate 8, both of which can emit heat; the third heating plate 7 is arranged between the cold-proof layer 3 and the thermal insulation layer 2 facing the human thigh, and the fourth heating plate 8 is arranged between the cold-proof layer 3 and the thermal insulation layer 2 facing the human lower back. After the third heating plate 7 and the fourth heating plate 8 are powered on, they can heat up and emit heat to the outside, thereby heating the human thigh and lower back respectively.

[0053] The specific structure and material of the third heating plate 7 and the fourth heating plate 8 can be set according to actual needs, as long as the function of heating after power on can be realized. Exemplarily, the third heating plate 7 and the fourth heating plate 8 are both made of graphene electric heating film, and the third heating plate 7 and the fourth heating plate 8 are respectively connected to the mobile power supply in the pocket of the outdoor cold-proof jacket through connecting wires; the outdoor cold-proof jacket and cold-proof pants are split structures, and before the user wears the cold-proof suit, the connecting wires of the third heating plate 7 and the fourth heating plate 8 are not connected to the mobile power supply in the outdoor cold-proof jacket. After the user puts on the outdoor cold-proof jacket and cold-proof pants, the connecting wires of the third heating plate 7 and the fourth heating plate 8 are inserted into the interface of the mobile power supply, and then the user turns on the mobile power supply to supply power to the first heating plate 5, the second heating plate 6, the third heating plate 7 and the fourth heating plate 8; when it is necessary to take off the cold-proof suit, the user needs to first unplug the connecting wires of the third heating plate 7 and the fourth heating plate 8 from the mobile power supply, and then take off the outdoor cold-proof jacket and cold-proof pants respectively.

[0054] Furthermore, the cold-proof pants also include a reinforcement layer, which is arranged between the cold-proof layer 3 and the windproof layer 4 corresponding to the human knees. The reinforcement layer is made of thermal insulation fiber. The reinforcement layer of the cold-proof pants is used to meet the warmth requirements of the human knee joints.

[0055] Specifically, in order to improve the warmth-keeping effect of the cold-proof pants, a high waistband design is made at the back waist position of the cold-proof pants, which can effectively improve the warmth-keeping effect of the back waist part of the human body. At the same time, an elastic windproof skirt is arranged at the trouser leg opening of the cold-proof pants, and the elastic windproof skirt can fit the human ankle to prevent cold wind and rain and snow from penetrating.

[0056] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. For those skilled in the art, various obvious changes, readjustments and substitutions can be made without departing from the protection scope of the present invention. It is not necessary and impossible to list all the embodiments here. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. Outdoor cold-proof jacket, characterized in that: It comprises a temperature-raising layer (1), a heat-insulating layer (2), a cold-proof layer (3) and a wind-proof layer (4) which are sewn sequentially from the inside to the outside, wherein the wind-proof layer (4) is made of water-repellent fiber, the cold-proof layer (3) is made of aerogel, and the heat-insulating layer (2) is made of heat-insulating fiber; The temperature-raising layer (1) comprises a back covering portion (11) and a front covering portion (12); the back covering portion (11) is used to be in contact with the back of a human body, and the front covering portion (12) is used to be in contact with the chest and abdomen of a human body; the back covering portion (11) is made of a silver-plated film, and the front covering portion (12) is made of far-infrared fiber.

2. The outdoor cold-proof jacket according to claim 1, characterized in that: The outdoor cold-proof jacket further comprises a first heating plate (5), wherein the first heating plate (5) is arranged between the cold-proof layer (3) and the heat-insulating layer (2) opposite to the back covering portion (11), and the first heating plate (5) is used for heating the back covering portion (11).

3. The outdoor cold-proof jacket according to claim 2, characterized in that: The outdoor cold-proof jacket further comprises a second heating plate (6), which is arranged between the cold-proof layer (3) and the thermal insulation layer (2) opposite to the front covering portion (12), and is used for heating the front covering portion (12).

4. The outdoor cold-proof jacket according to claim 1, characterized in that: The outdoor cold-proof jacket also includes a reinforcement layer, which is arranged between the cold-proof layer (3) and the windproof layer (4) corresponding to the elbow of the human body, and the reinforcement layer is made of the thermal insulation fiber.

5. The outdoor cold-proof jacket according to claim 1, characterized in that: The temperature-raising layer (1) further comprises a breathable portion (13), wherein the breathable portion (13) is sewn between the back covering portion (11) and the front covering portion (12), and the breathable portion (13) is used to adhere to the armpits and the side waist of a human body, and the breathable portion (13) is made of breathable polar fleece.

6. The outdoor cold-proof jacket according to claim 1, characterized in that: The lower hem of the warming layer (1) is provided with an elastic adjustment member (14), and the elastic adjustment member (14) is used to adjust the elasticity of the lower hem of the warming layer (1).

7. The outdoor cold-proof jacket according to any one of claims 1 to 6, characterized in that: The seams of the windproof layer (4) are covered with a waterproof adhesive layer.

8. A cold-proof suit, characterized in that: The invention comprises an outdoor cold-proof jacket as claimed in any one of claims 1 to 7, and cold-proof trousers, wherein the cold-proof trousers comprise a warming layer (1), a thermal insulation layer (2), a cold-proof layer (3) and a windproof layer (4) which are sequentially sewn from the inside to the outside, wherein the windproof layer (4) is made of water-repellent fiber, the cold-proof layer (3) is made of aerogel, the thermal insulation layer (2) is made of thermal insulation fiber, and the warming layer (1) is made of far-infrared fiber.

9. The cold protection suit according to claim 8, characterized in that: The cold-proof pants further include a third heating plate (7) and a fourth heating plate (8), and both the third heating plate (7) and the fourth heating plate (8) are capable of radiating heat; The third heating plate (7) is arranged between the cold-proof layer (3) and the heat-insulating layer (2) facing the human thigh, and the fourth heating plate (8) is arranged between the cold-proof layer (3) and the heat-insulating layer (2) facing the human waist.

10. The cold protection suit according to claim 8, characterized in that: The cold-proof trousers also include a reinforcement layer, which is arranged between the cold-proof layer (3) and the windproof layer (4) corresponding to the human body knee, and the reinforcement layer is made of the thermal insulation fiber.

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