The Nike React Infinity Run Flyknit is designed to help reduce injury and keep you on the run. More foam and improved upper details provide a secure and cushioned feel. Lace up and feel the potential as you hit the road.An all-new version of Flyknit is stronger and more durable than previous versions. Lightweight and flexible, it features 3 distinct layers to help keep your foot secure. Higher foam stack heights provide a softer feel. A wider shape provides a more stable ride, helping release energy with every step. The shape of the Nike React foam midsole provides support for the 3 phases of a runner's stride. It helps create flexibility at toe-off, a smooth ride at mid-stance and cushioning at contact. Less material in the shoe means you're closer to the foam, creating a softer, more responsive experience.Increased rubber at the outsole helps deliver traction and durability.