How to choose your sizeSnug fit; we recommend ordering a half-size up.Product FeaturesLow-cut performance running sneakers designed for more miles outdoorsUpdated Flyknit material delivers remarkably lightweight and breathable supportFlyknit tongue is easily adjustable and secured by a lace-up closureWater-repellent liner on the toe helps keep you dry when the weather turnsCurved outsole helps your foot for smooth transitions and added efficiency to your runsEnergy-returning Nike ReactX foam cushioning gives you an incredibly smooth-yet-bouncy sensationWaffle-patterned outsole with added rubber provides durable traction across various surfacesThe Nike InfinityRN 4 Running Shoes are imported.Hit the ground running with faster times and less effort in the Men's Nike InfinityRN 4 Running Shoes. Tuned with high-stacking ReactX foam for increased energy return and updated Flyknit geared for a better fit and secure support join forces for a plush running experience and priceless peace of mind knowing you can take off for your daily runs anytime, anywhere.