Fine Australian Merino Wool constructed with itch-free fibers feel soft and comfortable against the skin. Naturally durable, anti-microbial and thermo-regulating for all seasons. Absorbs 35% of its weight in water, keeping skin dry longer and preventing hypothermia by maintaining warmth in extreme weather conditions. Helps boost energy levels, improve circulation and provides relief against delayed onset muscle soreness. Cushioned padded sole keeps feet blister free. Mesh-flex-zones provide ventilation. Fiber Content: 67% Fine Merino Wool, 26% Nylon, 7% Spandex