This version of the Nike InfinityRN 4 still provides a plush and smooth ride, with the new ReactX foam delivering more support.
The more cushioning that you have underfoot, the softer and more comfortable your running experience can be.
The more supportive the shoe, the more stability it can give to your natural stride.band (like a rubber band around the middle of your foot) offers elastic, secure support.
The more responsive the shoe, the more energy return you can get back with each step.
Description
Nike InfinityRN 4 is a brand-new take on a familiar favorite. It's made from our all-new Nike ReactX foam, which gives you 13% more energy return compared with Nike React foam, to help you stay fresh and bouncy. (What's more? Nike ReactX reduces its carbo
