Track and field shoes Nike Rival D Plus (2) for middle and long distance runners. Also suitable for cross-country running.UpperIncredibly lightweight, single-layer mesh panels for maximum breathability and comfort while providing excellent fit to the foot.Seamless overlays with perforations in the front and rear of the shoe for greater durability.Integrated lacing system with the upper for greater comfort and better fit to the foot.Insole glued to the sole provides greater foot stability in the shoe.MidsoleSpecially designed reinforcement at the midfoot level to support the main arch of the foot and facilitate smooth rolling with additional stability.Phylon foam has been compressed to allow for dynamic rebound and necessary cushioning while maintaining a low shoe weight.OutsoleFor increased durability on 3/4 length The outer sole is made of abrasion-resistant rubber.Seven replaceable screws placed in a durable Pebax layer allow for maximum grip during push-off.