Design: Flyknit throughout the upper, creating specific zones geared towards optimal breathability, flexibility and containment Hybrid tongue combines a sock-like feel with the adjustability of a traditional design Soft padding along the collar provides a cushioned touch point Flywire technology for support through the midfoot In-Shoe Comfort: Shaped like a rocker, the foam provides support for the 3 phases of a runner's stride; offers flexibility when your foot rises off the ground, a smooth ride when your foot is moving forward and cushioning at ground contact Nike React technology is a lightweight, durable foam that delivers a smooth, responsive ride Less material between the insole and midsole means you're closer to the foam giving you a more responsive feel Higher foam heights provide an even softer feel Durability & Traction: Increased rubber at the outsole helps deliver traction and durability