64% Combed cotton 30% Polypropylene 6% Spandex Imported Machine wash cold, tumble dry low. Pack of 5 pairs of lightweight anti odor combed cotton crew socks featuring elastic arch support and compression leg. No cushion but reinforced at toe and heel to make them durable. Titanium is blended in the yarn to provide significant anti stink effect and relieve feet itch. It won’t be washed off and no side-effect. The combed cotton is very soft and has great perspiration absorption and the polypropylene has unidirectional moisture wicking property which can conduct the sweat quickly so that the socks can keep your feet dry. With high quality spandex, the socks have great stretchability. They fit men’s shoes size 6 to 12 and Women’s shoes size 7-13.