The Nike Air Zoom Alphafly Next% 3 FP is designed for runners who want to get the most out of their training and competitions. Take your performance to the next level with this competition shoe! Midsole The midsole of this shoe has a Zoom Air Unit that absorbs shock and rebounds quickly, putting less strain on muscles, joints and tendons. Zoom Air Units deliver faster, more efficient energy transfer so you can jump higher and run faster. 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. Outsole Thanks to the rubber outsole, the shoe offers good grip and traction while running. Designed with maximum grip, optimal cushioning and lightweight technology, the Nike Air Zoom Alphafly Next% 3 FP helps you get closer to the finish line with every step.