1. Material: TPR
2. Size: M is suitable for size 35-39, L is suitable for size 39-44
3. Net weight: M (pair) 72G, L (pair) 80G
4. U-shaped 4D wrap fits the heel to enhance stability
5. Multi-directional balance of the soles of the feet and calf pressure
6. 10 honeycomb non-slip holes, don’t move
7. TPR tough material, not easy to deform when folded, wear-resistant
8. Corrective insoles for X/O legs and flat feet