Smooth and Responsive Nike React technology delivers a soft, smooth, responsive ride. The shape of the foam midsole is all about zonal performance. 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 contact. Secure Feel The latest in 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, breathable and durable feel that keeps your foot comfortable. Increased rubber at the outsole helps deliver better traction and durability. Molding around the heel keeps you feeling secure, so you can focus on your route.