Design: Upgraded the stretch mesh from the previous generation to an adaptable knit that offers flexibility, provides support and brings you closer to the ball The upper is made of NikeSkin with embedded chevrons, which helps provide ball control and truly gives you a feeling of barefoot soccer A Dynamic Fit collar wraps your ankle in soft, stretchy fabric for a secure feel In-Shoe Comfort: Air Zoom unit to help you flash your speed Durability & Traction: The wave-like traction pattern is a series of cascading studs, so it engages more surface area of the Air Zoom unit while also providing the appropriate amount of grip For use on natural and synthetic surfaces