Nike Invincible Run Flyknit 2 vs Nike React Infinity Run Flyknit 3: Which Nike Cushioning Shoe Should You Buy?

Introduction

Nike’s comfort-focused trainer line comes in two distinct flavors, and they are more different than the shared “cushioning shoe” label suggests. The ZoomX Invincible Run Flyknit 2 is built for a uniquely soft, bouncy ride on easy miles, while the React Infinity Run Flyknit 3 is a firm, stable workhorse designed to simply protect your legs day after day. Both run true to size, both use a wide base for stability, and both are priced above many everyday trainers, so the choice between them comes down to what you want from your easy-day shoe.

Nike Invincible Run Flyknit 2: Maximum Cushioning

The Invincible Run Flyknit 2 costs £164.95 or $180, weighs 285 grams (10.1 oz) for men in a size 8, and has a 9 mm drop. Its ZoomX foam is the same material used in the Alphafly and Vaporfly, but here it is tuned for comfort rather than racing: a soft, bouncy ride that minimizes impact and keeps your legs feeling fresh when tired. The wide base provides plenty of ground contact for stability, and the Flyknit upper offers a soft, secure fit with new laces that are easier to tie than the previous version.

The ride is about as much fun as you can have in an easy-day cushion shoe. It is soft without feeling unstable, and there is enough bounce to move through the gears on progression runs, though it is a touch heavy. It shines most on long, slow miles and recovery runs, where it makes sessions you dread feel genuinely enjoyable. That said, it is an acquired taste: if you prefer a firmer, more traditional ride or your foot position tends to wobble in very soft shoes, this may feel uncomfortable.

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Nike React Infinity Run Flyknit 3: The Reliable Workhorse

The React Infinity Run Flyknit 3 costs £145 or $160 and weighs 292 grams (10.3 oz) for men in a size 8. The midsole uses Nike’s React foam for a balanced ride that is cushioned without being noticeably soft, with a wide base for stability and a rocker shape for a smooth rolling motion. The stretchy Flyknit upper feels roomy and breathable with a sock-like fit, and cushioning around the heel, ankle and padded tongue adds support.

On the road, this is a very reliable, smooth, protective ride. It is firm but not harsh, more stable than the Invincible, and it largely disappears on the foot. It is not particularly versatile and offers little speed, and some would call the ride dull, but as a durability-focused trainer for heavy marathon training blocks, it protects your legs extremely well. The React foam and outsole barely break down, with plenty of runners getting well over a thousand miles out of the line.

Fit and Sizing

Both shoes fit true to size for most wearers, with good room in the toe box and a secure hold around the heel and midfoot. The Invincible 2 has a more padded, secure upper, while the Infinity 3 uses a looser sock-liner style material that some runners prefer for its slipper-like feel. Neither needed sizing adjustments, so you can order your usual running shoe size with confidence.

Price and Value

The Invincible 2 sits at £164.95 / $180, and the Infinity 3 at £145 / $160. The Infinity 3 is the more conventional shoe: very durable, sensible, and widely discounted, which makes it easy to justify if you catch it on sale. The Invincible 2 is more expensive for an easy-day shoe, and hard to recommend over a solid £100 cushioned trainer unless you specifically want the most fun, softest ride available. If both were around the same sale price, the Invincible 2 is the more interesting buy, and many runners happily pay a modest premium for it.

Conclusion

If you want maximum softness and genuinely enjoyable recovery runs, the Invincible Run Flyknit 2 is in a class of its own, as long as the extra price and very soft ride suit you. If you want a stable, durable, no-drama daily trainer and can find it discounted, the React Infinity Run Flyknit 3 is the sensible pick. Both are excellent at their jobs; the right one depends on whether your easy miles should feel like a treat or a routine.