Airflex is a breathable material designed for comfort during activity. It helps air flow, transfers heat, and keeps moisture away from your body. It's great for activities where you might get sweaty. It's also stretchy and smooth for extra comfort. Airflex Contoured Wrist Stabilizer Long is longer than the 3797 design, measuring 10 inches. It supports weak wrists, keeping them in a neutral position for healing. It has aluminum stays for stability and is cut near the palm to let your hand move freely while still supporting your wrist. Putting it on is easy with the d-ring.