Champion Double Dry No Show Sock - 6 Pack (CH608) White: 74% Ring spun cotton; 21% polyester; 3% natural latex rubber, 1% spandex. Black: 75% ring spun cotton; 20% polyester; 3% natural latex rubber, 1% nylon, 1% spandex Imported 78% cotton, 18% polyester, 2% Latex rubber, 1% nylon, 1% spandex Country of origin: USA Care: Machine wash cold. Tumble dry low.