Carhartt Men's Cold Weather Boot Socks Orange: 67% Acrylic, 16% Wool, 10% Polyester, 6% Nylon, 1% Spandex Made in US Pull On closure Machine Wash Fast dry technology moves away sweat Merino wool construction for ultimate warmth Reinforcement in the heel and toe for durability Odor protection to keep socks fresh Stretch material throughout for a superior fit