Sole and shoe

Abstract

The utility model discloses a sole and a shoe. The shoe sole comprises an outsole, a sole body and a sole body, the rear insole is arranged on the outsole and comprises a midsole and a foot pad which are connected into a whole, the foot pad is in contact with the foot sole of the human body, and the midsole is close to the outsole; the plurality of rear insoles can be mutually replaced; and the plurality of rear insoles are combinations of insoles and foot pads, which are formed by insole materials with different hardness and have different thicknesses. The utility model provides a sole and a shoe, and the shoe adopts the design of a replaceable rear insole, so that the shoe can be flexibly adjusted according to sports requirements of different strengths.

Description

Technical Field

[0001] The utility model relates to the field of footwear, in particular to a sole and a shoe. Background Art

[0002] In today's society, as people pay more and more attention to healthy living, sports activities have become an indispensable part of daily life. However, after high-intensity exercise, athletes often feel fatigue in their feet and soles, which seriously affects their sports experience and recovery effect. Therefore, a post-match recovery shoe that can quickly relieve fatigue and restore physical fitness has become an urgent need in the market. Due to thickness limitations, traditional insoles are often difficult to provide sufficient support and soothing effects, which greatly limits their application effect in post-match recovery. Although there are some post-match recovery shoes on the market, most products still adopt a single hardness design, such as using a midsole with a hardness of about 65 degrees with a 3mm insole. Although this design can provide certain support for the feet, it often cannot adapt to the diverse needs of different sports scenes and living environments due to the lack of sufficient adaptability and flexibility. The key to whether a shoe is comfortable or not lies in the sole, and the physical properties of the sole, such as hardness, rebound, and weight, directly affect the user's wearing experience. Therefore, the existing technology has been committed to the development of outsole materials with superior physical properties. However, the traditional shoe manufacturing process has become a bottleneck that restricts the physical properties of the sole. During the manufacturing process, the upper needs to be sewn first, and after the complete upper is made, it is matched with the shoe last, and finally the outsole is attached. This manufacturing method results in multiple layers of barriers such as foot pads, midsole fabrics, and glue between the user and the best midsole object. These extra layers not only increase the thickness of the shoes, but may also reduce the comfort of wearing. More importantly, they hinder the direct effect of the physical properties of the sole on the foot, affecting the overall performance of the shoe. Utility Model Content

[0003] The purpose of the utility model is to overcome the above-mentioned defects or problems existing in the background technology and to provide a sole and a shoe. The shoe adopts a replaceable rear insole design so that the shoe can be flexibly adjusted according to the needs of sports of different intensities.

[0004] To achieve the above objectives, each embodiment of the present invention adopts the following technical solutions but is not limited to the following solutions:

[0005] The first technical solution relates to a sole, comprising: an outsole; and a rear insole, which is arranged on the outsole, and includes a midsole and a foot pad that are connected as a whole, the foot pad contacts the sole of a human foot, and the midsole is close to the outsole; the number of the rear insoles is several and they can be replaced with each other, and the several rear insoles are formed by midsole materials of different hardness and have a combination of midsoles and foot pads with different thicknesses.

[0006] The second technical solution is based on the first technical solution, wherein the thickness of the rear insole corresponding to the forefoot part is 8 mm, and the thickness of the rear insole corresponding to the heel part is 16 mm, and the rear insole is provided with a supporting bulge corresponding to the arch of the human foot.

[0007] The third technical solution is based on the second technical solution, wherein the foot pad includes foam and cloth that are integrally connected.

[0008] The fourth technical solution is based on the third technical solution, wherein the midsole is made of ETPU material with a Shore hardness of 50±2, the thickness of the midsole corresponding to the forefoot part is 6 mm, the thickness of the midsole corresponding to the heel part is 14 mm, and the thickness of the foam is 2 mm.

[0009] The fifth technical solution is based on the third technical solution, wherein the midsole is a physical foaming material with a Shore hardness of 58±2, the thickness of the midsole corresponding to the forefoot part is 4 mm, the thickness of the midsole corresponding to the heel part is 12 mm, and the thickness of the foam is 4 mm.

[0010] The sixth technical solution is based on the third technical solution, wherein the midsole is made of EVA material with a Shore hardness of 65±2, the thickness of the midsole corresponding to the forefoot part is 5 mm, the thickness of the midsole corresponding to the heel part is 13 mm, and the thickness of the foam is 3 mm.

[0011] The seventh technical solution is based on the first technical solution, wherein the rear insole is provided with a massage area corresponding to the forefoot and toes, and the massage area is provided with a number of raised points suitable for the toes of the human foot.

[0012] The eighth technical solution is based on the first technical solution, wherein the rear insole is provided with an anti-slip area corresponding to the forefoot part, and the anti-slip area is an anti-slip silicone strip.

[0013] The ninth technical solution is based on any one of the first to eighth technical solutions, wherein a shoe comprises an upper and the above-mentioned sole, wherein the upper is connected to the outsole, and a plurality of the rear insoles can be replaced according to different sports.

[0014] From the above description of the various embodiments of the present invention, it can be seen that, compared with the prior art, the various embodiments of the present invention have the following beneficial effects:

[0015] In the first technical solution and related embodiments, by integrating the midsole and the foot pad to form a rear insole, the barrier between the midsole cloth and the glue solution is removed, so that the midsole material can more directly transfer its excellent physical properties to the wearer's feet, enhance the direct contact and transfer effect between the sole and the foot, and improve the comfort and functionality of wearing. The foot pad directly contacts the sole of the human body, providing a soft and comfortable touch, which helps to reduce the fatigue of the foot. The midsole is close to the outsole, providing sufficient support and stability to ensure the firmness and durability of the sole structure. In addition, the midsole is made of midsole materials with different hardness, forming a plurality of midsoles and foot pads with different hardness characteristics and different thicknesses. This design meets the personalized needs of different users, and the appropriate hardness can be selected according to different sports scenes to achieve the best wearing effect and functionality.

[0016] In the second technical solution and related embodiments, the ergonomic requirements are taken into consideration through the differentiated thickness design of the forefoot and heel of the rear insole, as well as the support bulge at the arch of the foot, thereby improving the wearing comfort. Specifically, the differentiated thickness design of the forefoot and heel enables the sole to have better shock-absorbing performance at key stress points, effectively reducing the damage to the foot caused by impact force, and providing the wearer with a safer and more comfortable wearing experience. At the same time, the support bulge at the arch of the foot can fit the shape of the arch of the wearer's foot, provide sufficient support and stability for the arch of the foot, help reduce foot fatigue during long-term walking or exercise, and restore the wearer's physical fitness and strength more quickly.

[0017] In the third technical solution and related embodiments, the foot pad includes foam and cloth, which has good comfort and breathability, and effectively avoids secondary damage to the sole of the foot caused by the hard midsole. Foam, as an excellent shock-absorbing material, provides excellent shock-absorbing performance for the wearer's feet. When walking or exercising, the foam can effectively absorb and disperse the reaction force of the ground, reduce fatigue and impact damage to the feet, and thus protect the health of the feet. The cloth surface is the outer layer material of the foot pad and provides a soft and comfortable touch. It fits the human skin, is not easy to cause allergies or discomfort, and brings an excellent wearing experience to the wearer. At the same time, the cloth surface also has certain moisture absorption and perspiration properties, which helps to keep the feet dry and comfortable.

[0018] In the fourth technical solution and related embodiments, one of the rear insoles is mainly for the relaxation of the sole muscles after daily wear and light exercise. The midsole is made of ETPU material, which is a foamed thermoplastic polyurethane elastomer known for its excellent elasticity and wear resistance. By controlling the Shore hardness of ETPU within the range of 50±2, it is ensured that the sole has moderate hardness and excellent resilience, which can not only provide sufficient support for the foot, but also effectively absorb the impact during walking or light exercise. In terms of structural design, the thickness of the midsole corresponding to the forefoot part is 6mm, which provides the necessary support and shock absorption effect for the forefoot, while ensuring the flexibility of the forefoot part, so that the wearer can walk or exercise easily. In the heel part, the thickness of the midsole is increased to 14mm, providing a stronger and more stable support force, effectively reducing the fatigue of the feet caused by standing or walking for a long time. In addition, the thickness of the foam in the insole is 2mm, so that the foam can provide sufficient shock absorption effect while avoiding increasing the overall thickness of the sole, thereby ensuring the comfort and lightness of wearing.

[0019] In the fifth technical solution and related embodiments, there is a rear-mounted insole, which is mainly used to restore the strength of the foot and leg muscles after general exercise. The midsole adopts physical foaming material, which gives the midsole high elasticity and good shock-absorbing performance. The Shore hardness is controlled within the range of 58±2, which not only ensures sufficient support but also avoids the discomfort caused by excessive hardness. The 4mm thickness of the forefoot part and the 12mm thickness of the heel part meet the requirements of forefoot flexibility and heel stability respectively, providing the wearer with just the right support and shock-absorbing effect. In addition, the 4mm thick foam layer in the insole further enhances the shock-absorbing performance of the sole, effectively absorbs and disperses the reaction force of the ground, and protects the foot from impact damage.

[0020] In the sixth technical solution and related embodiments, one of the rear insoles provides good body support for wearers participating in sports events, effectively reduces physical fatigue, and helps them recover their strength quickly. The midsole is made of EVA material, which has the characteristics of light weight, good elasticity, and excellent shock-absorbing performance. The hardness of the midsole material EVA is 65±2, which provides sufficient support and stability while maintaining a certain elasticity and shock-absorbing performance. In terms of structural design, the thickness of the midsole corresponding to the forefoot part is 5mm, and the thickness of the heel part is 13mm, which ensures the flexibility of the forefoot and the stability of the heel, and provides the wearer with support that fits the foot shape better. The thickness of the foam is 3mm, which not only provides sufficient shock-absorbing effect, but also avoids the sole being too thick.

[0021] In the seventh technical solution and related embodiments, one of the processing techniques in the forefoot area is that the rear insole is provided with a massage area with several convex points corresponding to the toe joints of the human foot, corresponding to the forefoot and toe parts. The design of these convex points closely fits the shape of the toe joints of the human foot, not only providing additional support and protection for the sole, but also playing a role of massage, which helps to quickly relieve the user's fatigue. At the same time, the presence of the convex points also enhances the support and stability of the sole, so that the wearer can feel a more stable and comfortable wearing experience during walking or exercise.

[0022] In the eighth technical solution and related embodiments, one of the processing techniques in the forefoot area is that the rear insole is provided with an anti-slip area of ​​anti-slip silicone strips corresponding to the forefoot part, and the anti-slip area is particularly suitable for shoes without heels. The anti-slip silicone strips can effectively enhance the friction of the forefoot part, prevent instability caused by sliding during the wearing and taking off process, and provide the wearer with a safer and more stable wearing experience.

[0023] In the ninth technical solution and related embodiments, the shoe adopts a replaceable rear insole design, so that the shoe can be flexibly adjusted according to the needs of sports of different intensities. By replacing the rear insoles of different hardness and thickness, the shoe can adapt to sports scenes of different intensities. Whether it is daily leisure, light exercise or after high-intensity exercise, the most suitable midsole configuration can be found, thereby providing the wearer with just the right support and cushioning effect, strengthening the foot wrapping, reducing sports injuries, and accelerating sports recovery. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0025] Figure 1 Schematic diagram of the sole of an embodiment;

[0026] Figure 2 Schematic diagram of the sole structure of an embodiment;

[0027] Figure 3 This is a schematic diagram of the rear-mounted insole structure of an embodiment;

[0028] Figure 4 This is a schematic diagram of the rear insole anti-slip area of ​​Example 1;

[0029] Figure 5 This is a schematic diagram of the rear insole massage area of ​​the second embodiment;

[0030] Figure 6Schematic diagram of the cross-section of the shoe structure of the embodiment.

[0031] Description of main reference numerals:

[0032] Outsole 1; bottom plate 2; outsole 3; labra midsole 4; rear insole 5; midsole 6; foot pad 7; foam 8; fabric 9; anti-slip area 10; upper 11; massage area 12; support bulge 13. DETAILED DESCRIPTION

[0033] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are preferred embodiments of the utility model and should not be regarded as excluding other embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

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

[0035] In the claims, specification and the above-mentioned drawings of the utility model, unless otherwise explicitly defined, directional words, such as the terms "center", "lateral", "longitudinal", "horizontal", "vertical", "top", "bottom", "inside", "outside", "up", "down", "front", "back", "left", "right", "clockwise", "counterclockwise", etc., indicating directions or positional relationships are based on the directions and positional relationships shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation or be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the specific protection scope of the utility model.

[0036] In the claims, specification and the above drawings of the utility model, unless otherwise clearly defined, if the term "fixed connection" or "fixed connection" is used, it should be understood in a broad sense, that is, any connection method without a displacement relationship and relative rotation relationship between the two, that is to say, including non-detachable fixed connection, detachable fixed connection, integrated connection and fixed connection through other devices or elements.

[0037] In the claims, specification and drawings of the present utility model, if the terms "include", "have" and their variations are used, they are intended to mean "including but not limited to".

[0038] See also Figures 1 to 6 , Figure 1 and Figure 2 Shows a schematic diagram of the sole; Figure 1 and Figure 2 As shown, a shoe sole comprises an outsole 1 and a rear insole 5.

[0039] Outsole 1, such as Figure 2 As shown, it includes an outer sole 3 and a bottom plate 2. The bottom plate 2 is the part of the bottom front part that contacts the ground and the part on the bottom waist, which plays an anti-slip and wear-resistant role.

[0040] Rear insole 5, such as Figure 3 As shown, it is arranged on the outsole 1, and includes a midsole 6 and a foot pad 7 which are connected as one body. The foot pad 7 contacts the sole of the human body, and the midsole 6 is close to the outsole 1.

[0041] like Figure 1 As shown, the rear insole 5 is provided with a support bulge 13 corresponding to the arch of the human body. The support bulge 13 at the arch can fit the shape of the arch of the wearer, provide sufficient support and stability for the arch, help reduce foot fatigue during long-term walking or exercise, and restore the wearer's physical fitness and strength more quickly.

[0042] Different process designs can be performed on the forefoot area of ​​the rear insole 5 to enhance the functionality of the rear insole 5 . The following are two embodiments of the processing technology of the rear insole 5 in the forefoot area.

[0043] Embodiment 1

[0044] like Figure 4 As shown, the rear insole 5 is provided with an anti-slip area 10 corresponding to the forefoot part, and the anti-slip area 10 is an anti-slip silicone strip, and the height of the anti-slip silicone strip protruding from the plane of the rear insole 5 is 1.5MM. The anti-slip silicone strip can be made by post-process printing. The anti-slip area 10 is one of the processing technologies in the forefoot area. The anti-slip area 10 is particularly suitable for shoes without heels. The anti-slip silicone strip can effectively enhance the friction of the forefoot part, prevent instability caused by sliding during the wearing and taking off process, and provide the wearer with a safer and more stable wearing experience.

[0045] Embodiment 2

[0046] like Figure 5 As shown, the rear insole 5 is provided with a massage area 12 corresponding to the forefoot and toe area, and the massage area 12 is provided with a number of convex points suitable for the toe gaps of the human foot. The massage area 12 is one of the processing technologies in the forefoot area. The design of these convex points closely fits the shape of the toe gaps of the human foot, which not only provides additional support and protection for the sole, but also plays a role in massage, which helps to quickly relieve the user's fatigue. At the same time, the presence of the convex points also enhances the support and stability of the sole, so that the wearer can feel a more stable and comfortable wearing experience during walking or exercise. The convex points are made directly in the mold.

[0047] The foot pad 7 includes a foam 8 and a cloth 9 which are connected as one body, and has good comfort and breathability, and effectively avoids secondary damage to the sole of the foot caused by the midsole 6 being too hard. As an excellent shock-absorbing material, the foam 8 provides excellent shock-absorbing performance for the wearer's feet. When walking or exercising, the foam 8 can effectively absorb and disperse the reaction force of the ground, reduce fatigue and impact damage to the feet, and thus protect the health of the feet. The cloth 9, as the outer layer material of the foot pad 7, provides a soft and comfortable touch. It fits the human skin, is not easy to cause allergies or discomfort, and brings an excellent wearing experience to the wearer. At the same time, the cloth 9 also has certain moisture absorption and perspiration properties, which helps to keep the feet dry and comfortable.

[0048] The number of rear insoles 5 is several and they can be replaced with each other. The several rear insoles 5 are a combination of midsoles 6 and foot pads 7 formed by midsoles 6 materials of different hardness and having different thicknesses. Figure 1 As shown, the thickness of the rear insole 5 corresponding to the forefoot part is 8mm, and the thickness of the rear heel part is 16mm. Through the differentiated design of the forefoot and heel thickness of the rear insole 5, and the support bulge 13 at the arch of the foot, ergonomic requirements are taken into consideration, thereby improving the comfort of wearing. Specifically, the thickness difference design of the forefoot and the heel enables the sole to have better shock absorption performance at key stress points, effectively reduces the damage to the foot caused by impact force, and provides the wearer with a safer and more comfortable wearing experience. In this embodiment, the number of rear insoles 5 is three styles of rear insoles 5 with different hardness. These rear insoles 5 are intended to meet people's needs for personalized comfort after exercise of different intensities. People can freely choose the insole style that suits them best according to their exercise intensity, physical fatigue level and energy loss. In this way, the different degrees of fatigue and energy loss that occur in the body after exercise can be effectively adjusted and alleviated, thereby improving the overall exercise experience and recovery effect.

[0049] In this embodiment, the midsole 6 and the foot pad 7 are integrated together to form the rear insole 5, and the barrier between the midsole 6 cloth and the glue solution is removed, so that the midsole 6 material can more directly transfer its excellent physical properties to the wearer's feet, enhance the direct contact and transfer effect between the sole and the foot, and improve the comfort and functionality of wearing. The foot pad 7 directly contacts the sole of the human body, providing a soft and comfortable touch, which helps to reduce the fatigue of the foot. The midsole 6 is close to the outsole 1, providing sufficient support and stability, ensuring the firmness and durability of the sole structure. In addition, the midsole 6 is made of midsole 6 materials with different hardness, forming a plurality of midsoles 6 and foot pads 7 with different hardness characteristics and different thicknesses. This design meets the personalized needs of different users, and the appropriate hardness can be selected according to different sports scenes to achieve the best wearing effect and functionality.

[0050] The following are three styles of rear insoles with different hardness 5.

[0051] Rear insole

[0052] The midsole 6 is made of ETPU material with a Shore hardness of 50±2. The thickness of the midsole 6 corresponding to the forefoot part is 6 mm, the thickness of the midsole 6 corresponding to the heel part is 14 mm, and the thickness of the foam 8 is 2 mm.

[0053] This embodiment is one of the rear insoles 5, which is mainly aimed at the relaxation needs of the sole muscles after daily wear and slight exercise. From the sum of the thickness of the midsole 6 and the foam 8 above, it can be seen that the thickness of the rear insole 5 corresponding to the forefoot part is 8mm, and the thickness of the corresponding heel part is 16mm. The midsole 6 is made of ETPU material, which is a foamed thermoplastic polyurethane elastomer known for its excellent elasticity and wear resistance. By controlling the Shore hardness of ETPU within the range of 50±2, it is ensured that the sole has moderate hardness and excellent resilience, which can not only provide sufficient support for the foot, but also effectively absorb the impact force during walking or slight exercise. In terms of structural design, the thickness of the midsole 6 corresponding to the forefoot part is 6mm, which provides the necessary support and shock-absorbing effect for the forefoot, while ensuring the flexibility of the forefoot part, so that the wearer can feel relaxed when walking or exercising. In the heel part, the thickness of the midsole 6 is increased to 14mm, providing a stronger and more stable support force, effectively reducing the fatigue of the foot caused by standing or walking for a long time. In addition, the thickness of the foam 8 in the insole is 2 mm, so that the foam 8 can provide sufficient shock-absorbing effect while avoiding increasing the overall thickness of the sole, thereby ensuring comfort and lightness of wearing.

[0054] Rear insole 2

[0055] The midsole 6 is made of physical foaming material with a Shore hardness of 58±2. The thickness of the midsole 6 corresponding to the forefoot part is 4 mm, the thickness of the midsole 6 corresponding to the heel part is 12 mm, and the thickness of the foam 8 is 4 mm.

[0056] This embodiment is one of the rear insoles 5, which is mainly used for restoring the strength of the foot and leg muscles after general exercise. From the sum of the thickness of the midsole 6 and the foam 8 above, it can be seen that the thickness of the rear insole 5 corresponding to the forefoot part is 8mm, and the thickness corresponding to the heel part is 16mm. The midsole 6 adopts physical foaming material, which gives the midsole 6 high elasticity and good shock-absorbing performance. The Shore hardness is controlled within the range of 58±2, which not only ensures sufficient support force, but also avoids the discomfort caused by excessive hardness. The 4mm thickness of the forefoot part and the 12mm thickness of the heel part meet the requirements of forefoot flexibility and heel stability respectively, providing the wearer with just the right support and shock-absorbing effect. In addition, the 4mm thick foam 8 layer in the insole further enhances the shock-absorbing performance of the sole, effectively absorbs and disperses the reaction force of the ground, and protects the foot from impact damage.

[0057] Rear insole three

[0058] The midsole 6 is made of EVA material with a Shore hardness of 65±2. The thickness of the midsole 6 corresponding to the forefoot portion is 5 mm, the thickness of the midsole 6 corresponding to the heel portion is 13 mm, and the thickness of the foam 8 is 3 mm.

[0059] This embodiment is one of the rear insoles 5, which provides good body support for wearers participating in sports events, effectively reduces physical fatigue, and helps them quickly recover their physical strength. From the sum of the thickness of the midsole 6 and the foam 8 above, it can be seen that the thickness of the rear insole 5 corresponding to the forefoot part is 8mm, and the thickness corresponding to the heel part is 16mm. The midsole 6 is made of EVA material, which has the characteristics of light weight, good elasticity, and excellent shock-absorbing performance. The hardness of the EVA material of the midsole 6 is 65±2, which provides sufficient support and stability while maintaining a certain elasticity and shock-absorbing performance. In terms of structural design, the thickness of the midsole 6 corresponding to the forefoot part is 5mm, and the thickness of the heel part is 13mm, which ensures the flexibility of the forefoot and the stability of the heel, and provides the wearer with a support that fits the foot shape more closely. The thickness of the foam 8 is 3mm, which not only provides sufficient shock-absorbing effect, but also avoids the sole being too thick.

[0060] A shoe, such as Figure 6As shown, it includes an upper 11 and a sole as described above, the upper 11 is connected to the outsole 1, specifically, the upper 11 is sewn with the laban midsole 4 to form a closed upper 11 structure, and then the outsole 1 is fitted with the upper 11 structure. Several rear insoles 5 can be replaced after exercise of different intensities. In this embodiment, the shoe adopts a replaceable rear insole 5 design, so that the shoe can be flexibly adjusted according to the needs of exercise of different intensities. By replacing the rear insoles 5 of different hardness and thickness, the shoe can adapt to sports scenes of different intensities. Whether it is daily leisure, light exercise or after high-intensity exercise, the most suitable midsole 6 configuration can be found, thereby providing the wearer with just the right support and shock-absorbing effect, strengthening the foot wrapping, reducing sports injuries, and accelerating sports recovery.

[0061] The description of the above specification and embodiments is used to explain the protection scope of the utility model, but does not constitute a limitation on the protection scope of the utility model. Through the enlightenment of the utility model or the above embodiments, ordinary technicians in this field can obtain modifications, equivalent replacements or other improvements to the embodiments of the utility model or part of the technical features thereof through logical analysis, reasoning or limited experiments, which should be included in the protection scope of the utility model.

Claims

1. A shoe sole, characterized in that: include: Outsole (1); and A rear insole (5) is arranged on the outsole (1), and comprises a midsole (6) and a foot pad (7) which are connected in one piece, wherein the foot pad (7) contacts the sole of a human body, and the midsole (6) is close to the outsole (1); The number of the rear insoles (5) is several and they can be replaced with each other. The several rear insoles (5) are a combination of a midsole (6) and a foot pad (7) with different thicknesses, formed by midsole (6) materials with different hardnesses.

2. A sole as claimed in claim 1, characterized in that: The thickness of the rear insole (5) corresponding to the forefoot portion is 8 mm, and the thickness of the rear heel portion is 16 mm. The rear insole (5) is provided with a supporting bulge (13) corresponding to the arch of the human foot.

3. A sole as claimed in claim 2, characterized in that: The foot pad (7) comprises a foam (8) and a cloth surface (9) which are connected in one piece.

4. A sole as claimed in claim 3, characterized in that: The midsole (6) is made of ETPU material with a Shore hardness of 50±2. The thickness of the midsole (6) corresponding to the forefoot part is 6 mm, the thickness of the midsole (6) corresponding to the heel part is 14 mm, and the thickness of the foam (8) is 2 mm.

5. A sole as claimed in claim 3, characterized in that: The midsole (6) is made of a physical foaming material with a Shore hardness of 58±2. The thickness of the midsole (6) corresponding to the forefoot part is 4 mm, the thickness of the midsole (6) corresponding to the heel part is 12 mm, and the thickness of the foam (8) is 4 mm.

6. A shoe sole as claimed in claim 3, characterized in that: The midsole (6) is made of EVA material with a Shore hardness of 65±2. The thickness of the midsole (6) corresponding to the forefoot part is 5 mm, the thickness of the midsole (6) corresponding to the heel part is 13 mm, and the thickness of the foam (8) is 3 mm.

7. A shoe sole as claimed in claim 1, characterized in that: The rear insole (5) is provided with a massage area (12) corresponding to the forefoot and toe areas, and the massage area (12) is provided with a plurality of convex points suitable for the toe gaps of the sole of the human body.

8. A shoe sole as claimed in claim 1, characterized in that: The rear insole (5) is provided with an anti-skid area (10) corresponding to the forefoot portion, and the anti-skid area (10) is an anti-skid silicone strip.

9. A shoe, characterized in that: It comprises a shoe upper (11) and a sole as claimed in any one of claims 1 to 8, wherein the shoe upper (11) is connected to the outsole (1), and a plurality of rear insoles (5) can be replaced according to different sports.

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