I'm just got my 2nd pair of these. I got nearly 600 miles out of the 1st pair so that should tell you that they're incredibly well-cushioned, supportive, and durable. Word I've been hearing is that these may be replacing the zoom structures? They are marketed to be injury prevention shoes and I have some thoughts on this but I think it is a worthy and attainable pursuit. If you are prone to shin splints then these shoes are definitely for you. The thick, wide, react midsole and plastic guide-rail have a wonderful blend of cushioning and support while allowing natural movement. If plantarfascitits is your krytonite then these shoes might have a little too much give in them to entirely relieve or prevent the microtears or inflamation there and I think the zoom ... MoreI'm just got my 2nd pair of these. I got nearly 600 miles out of the 1st pair so that should tell you that they're incredibly well-cushioned, supportive, and durable. Word I've been hearing is that these may be replacing the zoom structures? They are marketed to be injury prevention shoes and I have some thoughts on this but I think it is a worthy and attainable pursuit. If you are prone to shin splints then these shoes are definitely for you. The thick, wide, react midsole and plastic guide-rail have a wonderful blend of cushioning and support while allowing natural movement. If plantarfascitits is your krytonite then these shoes might have a little too much give in them to entirely relieve or prevent the microtears or inflamation there and I think the zoom structures have the upper hand in this area. Maybe a midfoot shank or a block of denser foam in the area could help with this? (I don't claim to be an expert). The flyknit upper is snug, strong, lightweight, and breathes really well but I think the heel counter could be more comfortable, supportive, and secure if it were built more like a traditional (structure/vomero) heel counter. The shoe is not really a speed shoe but is wonderful for recovery runs, steady state runs, and long runs. I would definitely be interested in a winterized version of this shoe (without a flyknit upper obviously) for those cold, wet runs. I'm looking forward to seeing where Nike goes with this shoe.

Awesome cushion and looks great. My one and biggest complaint which counts for more than just this shoe but also the zoomx shoes like the next% and the alphafly all have the same problem. The arch is so not necessary. I get it looks cool and love the looks of the shape. But the way the arch cuts in by inches from the heel and forefoot is just crazy and so uncomfortable. It throws me such a bad mood because the shoe tech is amazing. I have so much hope for the new zoomx shoe, the zoomx invincible is everything I’ve been asking because the heel clip stays in the heel and off the cushion and more important doesn’t go all the way down to the mid foot arch area. It’s just so narrow and uncomfortable. My only suggestion is make separate shoes that are wider in the arch or ... MoreAwesome cushion and looks great. My one and biggest complaint which counts for more than just this shoe but also the zoomx shoes like the next% and the alphafly all have the same problem. The arch is so not necessary. I get it looks cool and love the looks of the shape. But the way the arch cuts in by inches from the heel and forefoot is just crazy and so uncomfortable. It throws me such a bad mood because the shoe tech is amazing. I have so much hope for the new zoomx shoe, the zoomx invincible is everything I’ve been asking because the heel clip stays in the heel and off the cushion and more important doesn’t go all the way down to the mid foot arch area. It’s just so narrow and uncomfortable. My only suggestion is make separate shoes that are wider in the arch or make wide sizing for your top shoes like you do your other models. I’m waiting for you to still make a casual shoe with zoomx and make it wide for stability no plates no clips just that sweet cushion underfoot for comfort. Thank you hope this helps God bless

These shoes were not what I was expecting. I wear a size 10 in Pegs and 10 in the Vaporfly 4% Flynit so I purchased the React Infinity Run in a size 10. With the Flynit upper on the React Infinities, I was expecting a foot hugging fit and feel similar to the Vaporfly Flynit. That was not the case with React Infinities. The heel stability is frustratingly sloppy. During my first 7 mile run in them this evening, they definitely felt very soft and comfortable, but it also felt like my heel kept slipping out, which bothered me because I couldn't stop thinking about it the for the entire run. My heels did not feel locked in at all like they do in the Vaporflys and not as secure as in the Pegs. To make matters worse, Nike did not include the extra pair of eyelets at the ... MoreThese shoes were not what I was expecting. I wear a size 10 in Pegs and 10 in the Vaporfly 4% Flynit so I purchased the React Infinity Run in a size 10. With the Flynit upper on the React Infinities, I was expecting a foot hugging fit and feel similar to the Vaporfly Flynit. That was not the case with React Infinities. The heel stability is frustratingly sloppy. During my first 7 mile run in them this evening, they definitely felt very soft and comfortable, but it also felt like my heel kept slipping out, which bothered me because I couldn't stop thinking about it the for the entire run. My heels did not feel locked in at all like they do in the Vaporflys and not as secure as in the Pegs. To make matters worse, Nike did not include the extra pair of eyelets at the top of the lacing system to create the "runner's loop" that provides a more secure fit for the hindfoot. The wider toe box also seems to take away from foot hugging purpose of the Flynit. Additionally, the Flynit did not seem to respond all that well when turning through corners. I keep getting a sliding sensation of my feet in the React Infinities during these portions of my run. I do believe a size 10 was correct size for me in these because my toes would have been touching the front of the shoe with a 9.5. I honestly don't understand why Flynit was used on these trainers. Flynit is lightweight and makes sense of racing shoes, but why is it needed on everyday training or recovery shoes? Saving a couple ounces just doesn't seem worth it on a pair trainers.