Rubber sole 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. The latest in Flywire technology features an elastic design that intertwines with the Flyknit upper, helping your foot feel secure as you run. Heel and tongue pull tabs Lightweight, responsive foam and a lace-free design make the Nike React Phantom Run Flyknit 2 the ultimate in comfort for the everyday runner. Flyknit technology in the upper adds secure support while Nike React foam in the midsole helps to cushion your every stride. Pops of blue and orange add a touch of vibrant energy to your daily run.