Browning Hosiery Men's Antimicrobial Scent Eliminating Socks-Pack of 2 65% Cotton, 17% Nylon, 15% X-System Polyester, 3% Spandex Made in US X-System permanent silver technology has antibacterial fibers that prevent growth of bacteria Medium weight boot length; Perfect for year-round wear Arch support for added fit; Flat toe seam Full cushion leg and foot; Moisture management Machine washable