BUILT FASTER TO BREAK BARRIERS. Nike ZoomX foam is incredibly responsive and lightweight, giving you optimal energy return and impact protection for your miles. It combines with 2 slim, visible Zoom Air units, delivering the most energy return of all Nike's racing shoes. More cushioning helps make each step feels soft and plush, keeping you comfortable through the later miles of your race. A full-length carbon fiber plate provides a snappy sensation with each step. The AtomKnit fabric is steamed and stretched, delivering a lightweight, contoured fit with minimal water absorption and enhanced breathability. The integrated tongue provides a consistent fit with comfortable lace-up. The outsole was created using data from hundreds of runners. That data helped inform the design, with different angles of traction placed where you need it. This helps provide grip from toe-off through every phase of your stride. Gear up for your next personal best with the Nike Air Zoom Alphafly Next%.