Nike Junior mercurialx vapor xi little boys turf shoe in black/black-pink blast colors.Part of the Pitch Dark Pack, the next generation kid’s Nike MercurialX Vapor XI Turf Trainer is designed to provide invincible speed on natural and artificial grass surfaces. Upper:Lightweight Tejin microfiber upper with speed ribs that offers a seamless fit and a sock-like feel. Insole:lightweight perforated sockliner with textile liner for low profile cushioning.