Timberland Men's Coolmax Liner Combo Boot Socks, Rustic Heather/Black, One Size Boot Sock: 50% Acrylic/29% Wool/19% Nylon/1% Spandex/1% Polyester; Liner Sock: 64% Coolmax Polyester/28% Polyester/6% Nylon/2% Lycra Spandex Machine Wash Full cushion, arch support Reinforced heel and toe, embroidered tbl logo