Silica gel material, ultrathin forepart design, it is soft and comfortable. Decrease foot pain It can pressure and shock, relieve pain from bent toes, plantar fasciitis arch support, flat feet orthotic. Used repeatedly Can keep its shape after bended , can be used repeatedly. Special tiny design Small, invisible and exquisite appearance, adjust your walking style. Protect your feet The part of corrugated pattern is softer than surrounding part, protecting your feet better.