87% combed cotton with silver fiber 10% nylon 3% spandex Imported Machine wash cold, tumble dry low. Pack of 5 pairs of padded ankle length combed cotton deodorant socks with breathable mesh on the top of foot. Super soft cushion protects feet from injury and absorb sweat quickly to keep your feet dry. Silver fiber is blended in the Compact-Siro spinned cotton yarn to provide never wash off anti stink effect and keep you away from smelly feet. Full refund if no effect! Elastic arch support provides snug fit and keep the socks from rolling. The heel tab prevents you from the friction with shoes and avoid sliding into the shoes. With high quality nylon and spandex, the socks have great stretchability. They fit men’s shoes size 6 to 12 and Women’s shoes size 7-13.