The Nike Air Zoom Alphafly Next% 3 is a sleek and comfortable fast running shoe designed to give runners an edge during training and racing. Designed to increase your speed, stability and confidence during every race. Go for gold with this competition shoe! This product is part of a collection that Nike has specially designed for the Berlin Marathon. Midsole Zoom Air Units are incorporated into the midsole. These absorb shock and bounce back quickly. This puts less strain on your muscles, joints and tendons. You can run faster and jump higher with the Zoom Air Unit because it transfers energy more efficiently. In addition, the midsole contains a carbon fiber plate known as the Flyplate, which acts like a spring. The shoe feels very responsive when walking because it propels you forward. Upper The AtomKnit 2.0 upper is made from strong, yet lightweight yarns that are woven into one piece. It is designed to provide support to the midfoot while allowing flexibility and breathability in the forefoot. The difference with Flyknit is that the material used is thinner. This is to save weight. Wear sole The shoe has a rubber outsole and provides good grip and traction while running. With the Nike Air Zoom Alphafly Next% 3 your performance will reach new heights and make you shine.