It features a seamless Flymesh upper for support and breathability. Iconic Max Air cushioning provides a lightweight, smooth feel with each step, whether you're running your three-miler or running your day. Breathability and Comfort Lightweight Flymesh fabric allows air to flow to keep your feet from overheating. Smooth Stride A full-length Max Air unit combined with lightweight Cushlon foam directly underfoot provide incredible cushioning and a springy feel–all day, all run long. The cushioning creates a smooth sensation with each heel-to-toe step. Great Traction Soft rubber on the outsole in a Waffle-inspired pattern delivers durability and superb traction on the track, trail or sidewalk. Size: 11.