Stay on your feet with soft and supportive cushioning, built to help keep you on the run. A wider forefoot and higher foam stacks help shield you from recurring attrition, giving you the peace of mind to pound the pavement every day. The springy responsiveness will surprise you too, adding an element of pure speed to 1 of our most tested shoes to help you go longer, faster and farther than ever. Smooth Ride Nike React technology is a lightweight, durable foam that delivers a smooth, responsive ride. Shaped like a rocker, the foam provides support for the 3 phases of a runner's stride. It offers flexibility when your foot rises off the ground, a smooth ride when your foot is moving forward and cushioning at ground contact. Adjusted Tongue Fully adjustable Flyknit tongue can be pulled out for a style perspective or toggled and tailored to different types of runs. It works with Flywire to create that just-right sensation of comfort and security. Non-knit collar is made of supersoft foam that complements the Flyknit. Breathable at All Times An advanced Flyknit upper provides breathability where you need it most. It's strong and durable, helping to keep your foot secure with every mile. Flywire technology offers extra support and stability through the midfoot.