Storm Ridge Mens Cotton Rich Boot Socks (Pack Of 3) 100% Polyester 3 pairs of mens boot socks in marl design. Provides warmth, comfort and durability. Fabric content: 54% Cotton, 44% Polyester, 1% Nylon, 1% Spandex. One size: US 8-12 (Euro 41-46). Machine washable at 30c.