Nike ZoomX Invincible Run Flyknit 2 Men's Road Running Shoes Avoiding injury is crucial no matter if you’re tackling a 20-miler in the middle of marathon prep or stockpiling tempo runs together. Specifically designed to offset the attrition of your toughest trainings, these shoes boast a stack of mattress-like cushioning to help you stay on your feet mile after mile. Earthy neutrals and playful summer-inspired details add a nostalgic vacation feel, while an unbelievable sense of springy propulsion provides responsive comfort that lets you focus on your run—not the potential repercussions. More Bounce with Every Ounce Nike ZoomX foam is responsive and lightweight, giving you bounce with every step. 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. Secure, Cushioned, Comfortable Our Flyknit upper helps keep your feeling comfortable and stable as you pound the pavement. Seamless engineering at the tongue creates cushy padding and an adjustable fit while the soft vamp offers your foot a secure and supportive feeling. A beveled heel clip adds cushioning and containment. Higher, Softer, Wider Higher foam heights provide an even softer feel. A wide, exaggerated shape at the forefoot offers a more stable ride. That data also helped guide the design and look of the shoe's sidewalls.