The ultimate solution to foot discomfort, these copper-infused adjustable arch supports form-fit to your feet to relieve foot stress and strain associated with plantar fasciitis, flat feet, fallen arches and more. Infused with copper threads, which reduce odors and enhance durability. Wear over or under socks, with or without shoes. Lightweight, thin and breathable, these supports fit in any shoe. One size fits most men or women. One pair.