One size: Comfortably fits women's size 5 US up to men's size 12 US. 200 needle knit premium socks with reinforced black toes and heels. Soft heel, easy pull on. Construction is 73% polyester, 18% nylon, 6% spandex, and 3% cotton. Care instructions: Do not dry-clean Do not iron Do not tumble dry Do not bleach Machine Wash: cold (30C or 90F).