Under Armour Men's Hike Lite Crew Boot Socks 41% Acrylic/35% Wool/18% Polyester/3% Nylon/3% Spandex Imported Lite cushion throughout provides comfort and breathability Embedded arch support helps reduce foot fatigue Armour dry material wicks moisture, accelerates evaporation Armour Block Technology helps prevent growth of odor-causing bacteria CHARGED wool provides superior moisture management, insulation and comfort