Carhartt Men's 3 Pack All-Season Cotton Crew Work Socks Grey: 59% Cotton/31% Polyester/9% Nylon/1% Spandex, Black: 74% Cotton/16% Nylon/9% Polyester/1% Spandex, White: 73% Cotton/17% Polyester/9% Nylon/1% Spandex Made in US Machine Wash Extended reinforcement around the heel and toe Extra padding for maximum protection Odor protection to keep feet fresh Premium cotton for breathable comfort Stretch material throughout for a superior fit