Carhartt Men's 2 Pack Full Cushion Steel-Toe Cotton Work Boot Socks White and Black: 70% Cotton, 21% Nylon, 8% Acrylic, 1% Spandex; Gray: 53% Cotton, 20% Nylon, 18% Polyester, 8% Acrylic, 1% Spandex Made in US Machine Wash Cushioned Abrasion resistant Arch support Fights odors