Nike Men's Zoom GP Challenge 1 HC Tennis Shoes Style FB3147 101

Upper: Synthetic and mesh material for lightweight support and easy ventilation. Rubber drag-guard on the medial side of the toe-box, and extra padding around the ankle collar for a plush feel. Integrated lacing and lateral belt help with support and lock-down.Midsole: Zoom Air units located under the forefoot and heel for easy energy return and a smooth ride. Stability plate helps to resist torsional twisting of the shoes.Outsole: High abrasion rubber outsole in a herringbone design; rubber is more dense on the medial forefoot high wear region, and finer tread on the lateral side for sliding enhancement.