Lace-Up closure The Zoom Air unit embedded under the forefoot compresses when you step down, then springs back when you push off The 360-degree multi-directional traction pattern along the outsole is aggressive, data-informed and computer-generated The rubber curves up the sides of the shoe to provide traction on the edges to help you stay in control, no matter what direction you go The laces feed through criss-cross webbing straps over the top of the foot When you lace up, it tightens the webbing to help hold your foot in place