With supportive cushioning built for a smooth run, the 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 carbon footprint in a pair of midsoles by at least 43% compared to Nike React foam.*) We coupled the ReactX foam with Nike Running's best-fitting Flyknit yet, so you can feel confident in every stride with soft upper support and breathability. It’s the kind of shoe that supports every step in style. *The carbon footprint of ReactX is based on cradle-to-gate assessment reviewed by PRé Sustainability B.V and Intertek China. Other midsole components such as airbags, plates or other foam formulations were not considered.
4.5 Stars
Lhillier - Dec 03, 2023
The first five miles were very disappointing and they felt way too narrow. My feet were hurting pretty bad after the first mile. After wearing them around the house for a day or two and put another couple miles on them, they loosened up and are my go-to recovery run shoes. I would definitely go half the size up.
paog506349934 - Dec 03, 2023
Very narrow shoe. I do see that they have the wide sizing which maybe what I should've bought. I went to the store and automatically gave me the reg and I had to size up a whole size. I'm a 6.5 and had to get a 7.5... crazy! Even the 7 still felt pretty tight the 7.5 gave my feet extra room. Still concern but I really like how this shoe looks and feels so hopefully they end up working for my daily use.
cassiee757223295 - Nov 28, 2023
Run very small. I have very narrow feet and normally wear a 7.5 or 8. Ordered an 8.5 and they were still too small. Will need to return for either a 9 or 9.5. Otherwise they feel very stable and I like the way they cup my heel. I’m not sure I love how stretchy the uppers are—I’m afraid they will lose their elasticity quickly and won’t stay supportive enough. I guess time will tell?
Snug fit; we recommend ordering a half-size upMore Info