Carhartt Men's Traditional All-Season Steel-Toe Cotton Work Socks White: 67% Cotton, 22% Nylon, 10% Acrylic, 1% Spandex; Black: 66% Cotton, 24% Nylon, 9% Acrylic, 1% Spandex; Grey: 62% Cotton, 21% Nylon, 10% Acrylic, 6% Polyester, 1% Spandex Made in US Machine Wash Super abrasion resistant Coralast fibers Smooth toe seam for comfort Stretch material for a contoured fit Dense terry foot bed cushioning Odor control keeps socks feeling fresh