Continue the next evolution of speed with a racing shoe made to help you chase new goals and records. It helps improve comfort and breathability with a redesigned upper. From a 10K to a marathon, this model, like the previous version, has the responsive cushioning and secure support to push you towards your personal best. Still the Best Energy Return Yet Nike ZoomX foam delivers Nike Running's greatest energy return yet. A full-length carbon-fibre plate creates a responsive feel that keeps you moving through your stride. Breathable and Soft A redesigned upper uses mesh fabric placed in areas where you need breathability. The result is a softer, cooler design that contours to your foot. Secure Containment Reinforcement along the forefoot provides extra durability and secure comfort.