Have you ever walked on Air? Step into this shoe to truly see how it's done. Look through or remove the perforated insole to see the transparent Nike Air unit. Made with at least 20% recycled content by weight, the stretchy upper keeps it light and cool for warmer weather. Flyknit upper uses stretchy yarns for a breathable and supportive fit that feels as light as air. Seamless collar sculpts the ankle for a sporty look that feels great, while padding on heel adds to the comfort. Rubber outsole adds durability and traction.