The Acu-Pulse Therapeutic Socks have woven silver fibers which offer entire foot, ankle and lower limb stimulation. These socks provide pain relief from foot problems and lower leg ailments. They also provide muscle stimulation and increase blood circulation. They are mostly used for plantar fasciitis, neuropathy, heel spurs, gout, bunions, collapsed arches and other foot pain. The unique material is expandable and one size fits all. The socks provide even stimulation throughout all the fibers. The socks are hand wash only and to be air dried.