Lightweight, responsive foam and a lace-free design make the Nike React Phantom Run Flyknit 2 "Black/Bright Crimson/Hyper Pink" Women's Running Shoe the ultimate in comfort for the everyday runner. Flyknit technology in the upper adds secure support while Nike React foam in the midsole helps cushion your every stride. Pops of crimson and neon blue bring vibrant energy to your daily run. 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 contact. The latest in Flywire technology features an elastic design that intertwines with the Flyknit upper, helping your foot feel secure as you run. 3 forefoot layers combine for a lightweight, breathable and durable feel that helps keep your foot comfortable. Molding around the heel helps you feel secure so you can focus on your route. Increased rubber at the outsole helps deliver better traction and durability.