USA MADE for Armed Forces Socks: Anti-microbial boot sock eliminates odor, regulates temperature, transports moisture, blister resistant, anti-static. Brown with silver fiber incorporated in the sock. The silver fiber is a broad spectrum anti-microbial yarn that actually touches the skin, kills bacteria on contact, completely eliminates all foot odor, offers enhanced blister resistance, moisture transportation, temperature management, and anti-static features. 3 pairs of socks in a pack. Available in sizes Small 9-11, or Medium 10-13. New. Blend of socks: 2.5% silver plated nylon, 82% cotton, 10% nylon, 5.5% spandex.