70% Combed cotton, 27% Polypropylene, 3% Spandex Imported Machine wash cold, tumble dry low. Pack of 3 Pairs of lightweight low cut cotton socks featuring elastic arch support, back heel tab and breathable mesh at top of feet. No cushion but reinforced at toe and heel to make them durable. Titanium is blended in the yarn to provide significant anti odor effect and relieve athletes foot. 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. High quality spandex provides great stretch which makes them fit mens shoes size 6-12 and womens shoes size 7-13.