Under Armour Men's ColdGear Hunter Full Cushion Boot Socks (1 Pair) 41% Olefin, 41% Wool, 17% Nylon, 1% Lycra Spandex Made in US Heavy full cushion throughout provides maximum comfort and warmth Embedded arch supprt helps reduce foot fatigue ArmourDry material wicks moisture, accelerates evaporation ArmourBlock technology helps prevent growth of odor-causing bacteria Charged wool provides superior moisture management, insulation and comfort