Made with copper infused fabric, these Anti-Fatigue Foot Sleeves have 7 zones of compression to help increase circulation, reduce swelling and ease pain. Ideal for plantar fasciitis, heel or arch pain. Thin, comfortable design can we worn under socks and fits in most shoes. You can also wear them barefoot or while sleeping. Nylon/Spandex/Elastic. One pair. Hand Wash only.