Nike React technology delivers a soft, responsive ride. It provides support for the 3 phases of a runner's stride-flexibility at toe-off, a smooth ride at mid-stance and cushioning at ground contact. Secure Feel Flywire technology features an elastic design that intertwines with the Flyknit upper, helping your foot feel secure as you run. Lightweight and Breathable Flyknit Loft is the latest update to the popular material. 3 forefoot layers combine for a lightweight and breathable feel that helps keep your foot comfortable. Molding around the heel helps keep you feeling secure so you can focus on your route. Increased rubber at the outsole helps deliver better traction and durability.