Nike Junior mercurialx vapor xi boys indoor soccer shoes in black/black-pink blast colors. 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. Outsole: Rubber outsole for traction on indoor and court surfaces. Features Ball Control Elements Ball Control Type: speed ribs Insole Removable Outsole Material: TPU Primary Upper Material: Teijin microfiber Suitable For: Indoor Surfaces Weight: 5.8oz.