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- Upper
- Flyknit
- Released
- 2023
- Colourway
- Grey Green
ReactX Infinity Run 4 Cool Grey Gorge Green
ReactX Infinity Run 4 Cool Grey Gorge Green
- Upper
- Flyknit
- Released
- 2023
- Colourway
- Grey Green
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Culture Note™
Released on 15 August 2023 and part of the ReactX Infinity Run line. This release has a flyknit upper in Cool Grey/Gorge Green/White. Cool Grey with Gorge Green is an outdoors palette on a road shoe, muted grey with a deep forest accent. ReactX is Nike's foam platform for daily running, the part of the range that is not chasing race times but chasing repeatable miles, and the Infinity Run line is aimed squarely at people who want to keep running without breaking. That focus comes from the same place everything at Nike does: Bill Bowerman was a coach first, and the company started in 1964 because he believed American runners deserved lighter, better shoes than the domestic market was offering them. A stability minded daily trainer is that founding idea applied to ordinary runners.
Two uses. First, easy and recovery mileage: this is a shoe for the runs between the hard ones, where you want cushioning and a stable platform rather than speed. Second, long days on your feet, worn with dark grey joggers and a green quarter zip, because the palette reads as gear rather than as gym kit. Size as you would other Nike running shoes and consider a half size up if you run long, since feet swell over distance. Rotate with a firmer shoe if you also do fast work. Air dry only, remove the insoles between wet runs, and never put foam midsoles near direct heat.
Nike's authority in running was earned on the track before it was ever sold on the road. Steve Prefontaine was the brand's first track endorser and its symbol of running as attitude rather than as sport, and his statue stands at the company's headquarters. Sponsored athletes from Sebastian Coe and Carl Lewis to Michael Johnson and Allyson Felix extended that credibility across generations. The plated racing revolution that followed, with ZoomX and carbon plates producing improvements of up to 4.2 percent in marathon times, pulled attention toward race day shoes. Daily trainers like this one are the quieter half of the same programme, where most actual running happens.
Nike's foam engineering runs across several platforms, from Lunarlite as a lightweight cushioning foam to ZoomX as its most responsive racing material, and ReactX sits in the daily training band where durability matters more than peak return. The Infinity Run build wraps that foam in a wide, supportive platform with a structured heel and a padded collar, because the shoe is designed to guide the foot rather than to let it move freely. The upper uses engineered knit with cabled support through the midfoot, the same principle as Flywire, which holds the foot with minimal added material. Style code FJ1221 006 confirms the Cool Grey and Gorge Green execution.
- Upper
- Flyknit
- Released
- 2023
- Colourway
- Grey Green
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