A shoe sole that breathes
By incorporating an air circulation system with an air chamber, support block, and one-way breathing valve in the sole, the system utilizes changes in foot pressure to achieve gas circulation, solving the problems of stuffiness and sweaty feet caused by the lack of ventilation in traditional shoe soles, and improving the breathability and comfort of wearing shoes.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- DONGGUAN QIXIN SHOE MATERIALS CO LTD
- Filing Date
- 2025-09-25
- Publication Date
- 2026-07-14
AI Technical Summary
Traditional shoe soles lack an active ventilation mechanism, causing the wearer's feet to feel stuffy, sweaty, breed bacteria, and produce odor.
The design incorporates an air circulation system consisting of an air storage chamber, support blocks, an air cushion, and a one-way breathing valve. It utilizes the pressure changes generated by footsteps to create a pumping effect, thereby circulating the gas to expel humid and hot air and draw in fresh air.
It enables continuous ventilation inside the shoe, improving stuffiness and sweaty feet, and enhancing breathability and comfort.
Smart Images

Figure CN224483182U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of shoe soles, and in particular to a breathable shoe sole. Background Technology
[0002] Traditional athletic shoes, casual shoes, or outdoor shoes often have closed soles or only simple perforations, which prevents the effective expulsion of hot and humid air inside the shoe. Especially in areas such as the forefoot and heel that are under frequent pressure and prone to sweating, the lack of an active ventilation mechanism leads to stuffy, sweaty, and uncomfortable feet for the wearer, and may even breed bacteria and produce odors. Utility Model Content
[0003] Purpose of the utility model: In order to overcome the shortcomings of the existing technology, the present utility model provides a breathable shoe sole, including an air storage chamber provided on the shoe sole body, wherein the air storage chamber is a groove structure provided on the upper surface of the shoe sole body;
[0004] A support block is provided at the forefoot of the air chamber, and multiple air cushions are provided at the heel of the air chamber. The upper surface of the support block and air cushions is flush with or slightly higher than the upper surface of the sole body to bear the pressure of the wearer's foot and prevent the foot from sinking into the groove.
[0005] An air gap is formed between the support block and the air cushion, which is used for the flow of gas.
[0006] The sole has multiple air holes on the left and right sides of the heel. Each air hole is connected to an air chamber and has a one-way breathing valve.
[0007] Furthermore, an ESS support plate is provided on the upper surface of the air chamber. The ESS support plate is made of EVA composite material and is used to assist the rebound of the sole body.
[0008] Furthermore, the ESS support sheet has multiple air holes in the coverage area corresponding to the air gap.
[0009] Furthermore, the bottom of the sole has multiple anti-slip protrusions.
[0010] The beneficial effects of this utility model are:
[0011] 1. This invention utilizes the periodic pressure changes during footsteps to generate a highly efficient pumping effect. When the foot presses down, the gas in the air chamber is compressed and expelled through two air holes on the ESS support plate, forming an airflow that directly acts on the foot surface, effectively removing hot and humid air. When the foot lifts, the air chamber rebounds and returns to its original position with the elastic assistance of the ESS support plate, generating negative pressure. This negative pressure draws in dry external air through air holes equipped with one-way breathing valves on both sides of the heel. The arrangement of the two-sided air holes creates an air convection effect in the heel area. The inhaled fresh air then flows through the breathable gap between the support block and the air cushion and fills the air chamber, thus forming a complete air circulation system. This achieves continuous ventilation inside the shoe, fundamentally improving the problems of stuffiness, moisture accumulation, and sweaty feet.
[0012] 2. In this utility model, the ESS support sheet is made of EVA composite material, which has softness and high elasticity. It can not only effectively assist movement, but also help enhance the tension and efficiency of the respiratory and circulatory systems. Attached Figure Description
[0013] Appendix Figure 1 This is a schematic diagram of the overall structure of a breathable shoe sole according to this embodiment;
[0014] Appendix Figure 2 This is a side view of a breathable shoe sole according to this embodiment;
[0015] Appendix Figure 3 This is a schematic diagram of the bottom of a breathable shoe sole according to this embodiment;
[0016] Appendix Figure 4 This is a cross-sectional view of the air storage chamber, ESS support plate, and one-way breathing valve of a breathable shoe sole according to this embodiment.
[0017] Appendix Figure 5 This is a cross-sectional schematic diagram of the ESS support plate and air cushion of a breathable shoe sole in Embodiment 1. Detailed Implementation
[0018] The present invention will be further described below with reference to the accompanying drawings.
[0019] As attached Figures 1 to 5 The invention shown is a breathable sole, including a sole body 1, on which an air chamber 2 is provided. The air chamber 2 is a groove structure provided on the upper surface of the sole body 1.
[0020] A support block 3 is provided at the forefoot of the air chamber 2, and multiple air cushions 4 are provided at the heel of the air chamber 2. The upper surfaces of the support block 3 and the air cushions 4 are flush with or slightly higher than the upper surface of the sole body 1, in order to bear the pressure of the wearer's foot and prevent the foot from sinking into the groove.
[0021] An air gap is formed between the support block 3 and the air cushion 4, which is used for the flow of gas.
[0022] Multiple air holes 5 are provided on the left and right sides of the heel of the sole body 1. The air holes 5 are connected to the air storage chamber 2. A one-way breathing valve 6 is provided in the air holes 5.
[0023] An ESS support plate 7 is provided on the upper surface of the air chamber 2. The ESS support plate 7 is made of EVA composite material and is used to assist the rebound of the sole body 1.
[0024] In practical use, the ESS support plate is made of EVA composite material, which is soft and highly elastic. It can not only effectively assist movement, but also help enhance the tension and efficiency of the respiratory and circulatory systems.
[0025] The ESS support sheet 7 has multiple air holes 71 in the coverage area corresponding to the air gap.
[0026] The bottom of the sole body 1 has multiple anti-slip protrusions 8.
[0027] Specific usage process:
[0028] During walking, the shoe utilizes the periodic pressure changes of the foot's stride to generate a highly efficient pumping effect. When the foot presses down, the gas in the air chamber is compressed, creating an airflow that is directly expelled from the vents on the ESS support plate above the air chamber. This airflow directly blows across the surface of the foot, carrying away moisture and heat. When the foot lifts, the air chamber rebounds and returns to its original position with the assistance of the ESS support plate, generating negative pressure. This negative pressure draws in fresh, dry air from the outside through the vents on both sides of the heel, which have one-way breathing valves. The design of the vents on both sides creates air convection at the heel. The fresh air then flows in through the breathable gap between the support block and the air cushion, filling the entire air chamber and forming a complete air circulation system. This continuously ventilates the inside of the shoe, fundamentally solving the problems of stuffiness, moisture buildup, and sweaty feet, significantly improving breathability and comfort.
[0029] The above are merely preferred embodiments of this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model.
Claims
1. A breathable sole, comprising a sole body (1), characterized in that: An air storage chamber (2) is provided on the sole body (1), and the air storage chamber (2) is a groove structure provided on the upper surface of the sole body (1); The air chamber (2) is provided with a support block (3) at the forefoot and a plurality of air cushions (4) at the heel. The upper surfaces of the support block (3) and the air cushions (4) are flush with or slightly higher than the upper surface of the sole body (1) to bear the pressure of the wearer's foot and prevent the foot from sinking into the groove. An air gap is formed between the support block (3) and the air cushion (4), and the air gap is used for gas flow. The sole body (1) has multiple air holes (5) on the left and right sides of the heel. The air holes (5) are connected to the air storage chamber (2). A one-way breathing valve (6) is installed in the air hole (5).
2. The breathable sole according to claim 1, characterized in that: The upper surface of the air storage chamber (2) is provided with an ESS support plate (7), which is made of EVA composite material and is used to assist the rebound of the sole body (1).
3. The breathable sole according to claim 2, characterized in that: The ESS support sheet (7) has multiple air holes (71) in the coverage area corresponding to the air gap.
4. The breathable sole according to claim 1, characterized in that: The bottom of the sole body (1) is provided with multiple anti-slip protrusions (8).