45% Polyester, 43% Cotton, 8% Rayon, 2% Rubber, 1% Spandex, 1% Nylon Imported Machine Wash Maximum Cushioning around the foot (full foot cushion) Double Tough Durability FreshIQ Advanced Odor Technology helps fight stinky feet Wicking Cool Comfort Fabric helps wick moisture and keep feet dry Comfort Toe Seam Fits Men's Shoe Sizes 6-12