Mesh vents accelerate moisture release to the outside of the socks, keeping your feet cooler and drier. Sustained arch reinforcement protects your arch and ensures a snug fit while increasing blood circulation throughout the foot. ArmourBlock® technology neutralizes the odor-causing microbes so your socks stay fresher, longer. Strategic cushioning built in for maximum shock absorption and protection. 85% Polyester / 3% Nylon / 2% Spandex. Imported.