Browning Hosiery Men's Antimicrobial Boot Socks (2-Pack) Foot: 85% Merino Wool, 6% Nylon, 6% Cupron Nylon, 3% Spandex; Leg: 60% Acrylic, 20% Merino Wool, 17% Nylon, 3% Spandex Made in US Full cushion leg and foot; Moisture management Medium weight; Cupron copper fibers create resistance against odors and bacteria growth Antimicrobial and antifungal properties; Arch support for added fit Ultra soft merino wool foot; Reinforced heel and toe Machine washable Full cushion leg and foot; Moisture management