Material: Surface layer:Nano environmental protection medical gluebetween the foot and the insole. Can be well bonded Features: 1. Fine texture, soft and comfortable, reduce joint pressure, strengthen the tone, improve posture. 2. Easy to take 3. The larger size and more colors for your choice 4. Lightweight walking insole, convenient, non-slip waterproof design, fashion and full of personality 5. Waterproof material, suitable for indoors and beach.seaside, swim, run, climbing, etc. 6. Its very convenient. It is very practical when we are on the grass, outdoors, or by the sea. It is also a material that can be degraded by nature. Environmentally friendly materials. 7.Material: Surface layer: Nano environmental protection medical glue Color: Pink, Black, Blue Material: ultra fiber Specifications: