The Nike InfinityRN 4 is the brand-new version of a familiar favorite model, with supportive cushioning designed for smooth running. It features the all-new Nike ReactX foam, which offers 13% more energy return compared to Nike React foam. Thus, you enjoy a refreshed feel and a springy stride. 

The Nike ReactX foam reduces the carbon footprint of the midsole by at least 43% compared to Nike React foam, thus contributing to the protection of the planet. We combined ReactX foam with Nike Running's Flyknit, which ensures the best fit to date, so you can feel confident with every step thanks to the soft support and breathability in the upper. It's the kind of shoe that offers support with every step in style.

What's new in the Nike InfinityRN 4?

This version of the Nike InfinityRN 4 continues to provide an ultra-soft feel and smooth stride, while the new ReactX foam offers more support. The updated Flyknit upper and wider toe area ensure stability and grip on the foot.

Extremely high-level cushioning

The more cushioning you have underfoot, the softer and more comfortable your running experience can be. Cushioning helps limit impact when your foot makes contact with the ground. The ReactX foam offers an incredibly soft feel, so you can push your limits.

Support: High

The more supportive the shoe, the greater stability it can offer to your natural stride. The combination of optimized support and cushioning in the right places ensures a stable feel with every step. The rounded outsole ensures smooth foot movement from heel to toe with every step. Thus, you enjoy a more natural feel with every step and greater efficiency in running, while using less energy during movement. The new internal Flyknit fit band, which is like a rubber band around the midfoot, offers elastic, stable support.

High responsiveness: Moderate

The higher the responsiveness of the shoe, the greater energy return you can enjoy with every step. Whether you want to run a little faster or with a little less effort, high-responsiveness shoes offer a slightly springier feel with every step, so you can make the most of every run. The ReactX foam offers +13% energy return compared to React foam, ensuring a cool feel and a springy stride in running.