The Finer Details The upper is made of NikeSkin with embedded chevrons, which helps provide ball control and truly gives you a feeling of barefoot soccer. 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. Nike have upgraded the stretch mesh from the previous generation to an adaptable knit that offers flexibility, provides support and brings you closer to the ball. Nike Kids Mercurial Zoom Vapor 16 Academy Firm Ground