X-Socks Men's Speed One Sock 25% nylon 39% SkinNODOR, 25% Nylon, 16% Mythlan, 16% Robur, 4% Elastane Air Conditioning Channel is a system made of finely woven knitmesh that continually circulates air. Located along the inside of the foot it ensures that every movement of the foot pumps the moist, warm air out of even tight fitting shoes. Traverse AirFlow Channel System offers lateral ventilation under the foot, while the AirCool Stripes allows cool, fresh air to circulate along the instep Anatomically shaped footbed aligned to both "R"-right and "L"-left foot. The footbed is thicker at the bottom of the foot and thinner around the toes and heel. This shape supports the natural rolling movement of the foot X-Cross Bandage cushions and stabilizes the sensitive ankle area without restricting freedom of movement