Nike Air Jordan Prime Fly 2 Mens Basketball Shoes Leather Leather and lightweight synthetic materials for durability and support. Lightweight injected Phylon for lightweight cushioning and stability. Nike Zoom unit in the forefoot for lightweight, responsive cushioning and a low-profile feel. Strategically placed flex grooves enhance flexibility for more natural motion when making quick cut Internal 3/4-length mesh bootie for ventilation and a snug, comfortable fit.