Carhartt Men's Comfort and Durability Crew Sock 4 Pack 66% Polyester, 17% Acrylic, 9% Wool, 6% Nylon, 2% Spandex Imported Machine Wash Cushioning for protection Insulation for warmth and moisture wicking Reinforced heel and toe for durability Flat toe seams for comfort Fits men's shoe size 6-12