Carhartt Men's Copper Ion Cotton Cushioned Boot Socks 70% Combed Cotton, 20% Nylon, 8% Polyester, 2% Lycraspandex Made in US Machine Wash Copper Ion Technology Fights Odor Full Cushioned Foot Graduated Compression Keeps Sock in Place 1 pair per package Materials: 70% Combed Cotton, 20% Nylon, 8% Polyester, 2% Spandex