OS1st Unisex TA4 Thin Air No Show Socks Color:BLACK XC4® waterproof extreme-comfort technology

XC4® waterproof extreme-comfort technology

minimizes friction

comfortable textile lining for a pleasant feel

Superior arch support

memory foam cushioning

OS1st Unisex TA4 Thin Air No Show Socks Color:BLACK XC4® waterproof extreme-comfort technologyOS1st TA4 Thin AirTM Performance Socks feature never before applied technology to keep your feet cool and protected during any activity. Created using 200n medical grade machinery and materials we are able to build in comfort, durability and blister protection, yet with the thinnest upper foot profile ever made. The "Thin SkinTM" construction with uniquely positioned lift bars, maximizes air flow achieving a cooling sensation to your feet. Targeted