Help prevent dry skin, Protect the skin against peeling and cracking Absorbing shock, relieve pain and pressure Material: medical grade silicone. Lightweight, reuseable Silicone Gel Heel Soft Socks Moisturizing Protector Insoles Foot Preventing and repairing cracking or peeling, softening dead skin and improving rough skin for foot. Preventing or curing plantar fasciitis, metatarsalgia, corns, calluses, blister, etc. Air holes can provide enough air for your feet to breathe and wick moisture. Can be worn under or over socks with bare feet, which is reusable and washable.