This Nike is all about updated support, cushioning and lightweight Midfoot Support A midfoot cage gives you the support you need for your run. It tightens around your foot when you lace up Flexible Step A foam midsole delivers a responsive, cushioned feel. More Benefits Mesh at the forefoot provides lightweight breathability. Heel padding contours to your foot for soft comfort. Rubber outsole offers durable traction. Synthetic leather and textile materials in upper New in box