Nike React Infinity Run Flyknit 3: First Run Review of a Familiar Favorite

Introduction

The Nike React Infinity Run Flyknit 3 is the latest version of one of Nike’s most popular daily running shoes, and after our first runs in it, the short version is simple: this is very much a case of more of the same, in a good way. It costs 145 pounds in the UK, with no confirmed US pricing at the time of testing, and it weighs 310 grams or 10.9 ounces for men in a size nine. Nike has not published an official drop figure, though the previous version sat at nine millimeters for men and 8.4 millimeters for women.

What the Nike React Infinity Run Flyknit 3 Is

This is an updated version of a well-established daily trainer, and it sticks close to the formula that made the line popular. The midsole uses Nike’s React foam, which delivers a balanced ride: cushioned without being noticeably soft. There is a wide base under the midsole for added stability, plus a rocker that promotes a smooth rolling motion through each stride.

The upper is a stretchy Flyknit that feels roomy and breathable while still holding the foot securely, and there is a healthy amount of padding around the heel, ankle collar, and tongue for a supportive fit.

Fit and Comfort

Fit is true to size in a men’s 23, matching the previous edition closely. The stretchy Flyknit upper makes the shoe feel almost like a sock, and there is generous room in the toe box, so even where the foot presses against the side of the shoe, the fabric simply gives a little rather than creating pressure points.

The step-in comfort is the standout here. Padding around the tongue and ankle collar, combined with the soft knit upper, makes the shoe feel comfortable from the moment you pull it on. Early concerns about heel slippage did not amount to anything; the foot felt secure after a short time.

Ride and Performance

Underfoot, the ride feels essentially unchanged from earlier versions of the shoe. The React midsole offers a balance between soft and firm rather than leaning fully plush, a character that invites comparison with New Balance’s Fresh Foam shoes like the Fresh Foam 1080 v11. It feels stable and dependable, a touch firmer than some max-cushion options.

Over an easy Sunday hour and steady 5K runs at around five-minute kilometer pace, the shoe did exactly what the Infinity line has always done well: it lets you bob along comfortably without feeling squishy, and it keeps you on track even when your legs are tired after a hard training week. There is a little usable versatility for tempo work, but the real strength is eating up long miles at an easy pace.

Who This Shoe Is For

The Infinity line has long appealed to runners who want one pair of shoes to cover everything, and this version keeps that identity. It suits beginners, high-mileage easy runners, and people who want a single trainer that can carry them from daily training all the way through marathon prep. It is not aiming for personal best attempts or sub-three-hour pace, but it can still be run at a decent pace without feeling slow or sluggish.

It is also a genuinely pleasant shoe to wear around town, which matters more than it sounds for a daily trainer that often leaves the running route and heads straight into errands.

Things to Consider Before Buying

The main drawback is price. At 145 pounds, it is expensive for what it is, and close to the Pegasus price point it would be an easy recommendation for plenty of beginners. Because the third version changes very little underfoot compared to the second, the practical advice is straightforward: if the previous version is still available at a discount, it is worth hunting down a bargain there first. If you want something bouncier and more dramatic, alternatives like the Nike Invincible or Asics Novablast offer more energy, while this stays stable and firmish.

Verdict

After the first runs, the Nike React Infinity Run Flyknit 3 is exactly what fans of the line expect: a solid, durable, reliable daily trainer with a comfortable Flyknit upper, a stable React midsole, and a smooth rocker ride. Nothing dramatically new, but a well-delivered update. Runners who already know the Infinity will know precisely what they are getting.

Conclusion

The React Infinity Run Flyknit 3 remains one of the easiest shoes to recommend for runners who want comfort, stability, and versatility in a single daily pair. The new upper is comfortable, the ride is as dependable as ever, and the shoe slots neatly into heavy training blocks and easy miles alike. Just weigh the 145 pound price against the previous version, which delivers a nearly identical experience for less while it is still in stock.