Nike Men's ReactX Infinity Run 4

With supportive cushioning built for a smooth run, the InfinityRN 4 is a brand-new take on a familiar favorite. It’s made with all-new Nike ReactX foam, which gives you 13% more energy return compared to Nike React foam, to help you stay fresh and bouncy. (What’s more? Nike ReactX reduces the carbon footprint of the midsole by at least 43% compared to Nike React foam, so it helps support the planet too.) Nike coupled the ReactX foam with Nike Running's best-fitting Flyknit yet, so you can feel confident in every stride with soft upper containment and breathability. It’s the kind of shoe that supports every step in style.What's New About the InfinityRN 4?This version of the Infinity still provides a plush and smooth ride, with the new ReactX foam delivering more support. The revamped Flyknit upper and wider toe box help your foot feel stable and secure. Cushioning: Super HighThe more cushioning that you have underfoot, the softer and more comfortable your running experience can