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Nike React Infinity Run Flyknit 3

Discontinued · road · Daily / Long run · $170

Nike React Infinity Run Flyknit 3: 34 mm heel stack, 8 mm drop, 297 g — specs from independent lab testing.

Built for daily, long run, at a target pace of 7:30–10:00 /mi on road.

This model is no longer in production. The closest shoe you can buy today is Nike InfinityRN 4.

The spec sheet

Weight
297 g / 10.5 oz
Heel stack
34 mm
Drop
8 mm
Plate
—
Cushioning
3 / 5
Energy return
3 / 5
Responsiveness
3 / 5
Rocker
2 / 5
Flexibility
3 / 5
Stability
2 / 5 (5 = most guidance)
Toe-box
Standard
Sizing
Size up ½
Durability
~400 mi
Price
$170

How it rides

The foam

Nike tuned this midsole balanced (3/5 on our cushioning scale). Energy return is moderate — comfortable and predictable rather than bouncy. 34 mm of heel stack is the modern daily-trainer sweet spot — enough foam for long miles without losing contact with the road. Combined, the ride reads as lively at 3/5 responsiveness.

The plate

There is no plate here. The midsole does all the work, so the shoe flexes naturally and stays versatile across paces — easier on the feet day to day, but without the snap of a plated shoe when you want to roll.

The geometry

A 8 mm drop is the mainstream middle — familiar to almost anyone coming from a standard trainer. The geometry is fairly traditional and flat, so the shoe follows your foot rather than steering it. Forefoot flex is middle of the road. It is a neutral platform with no built-in correction.

Fit, sizing & life

The toe-box is standard width — comfortable for most feet without swimming. It runs small; most runners size up a half. Expect roughly 400 miles from the outsole, about $0.42 per mile at $170.

For the foams and plates Nike uses across its line, read the Nike brand guide.

How it compares

Measured against the 542 currently-available shoes in the catalog. The bar shows where this shoe sits in that range.

Weight

297 g / 10.5 oz

22 g heavier than the catalog median of 275 g

Heel stack

34 mm

2 mm lower than the catalog median of 36 mm

Drop

8 mm

2 mm higher than the catalog median of 6 mm

Price

$170

10 pricier than the catalog median of 160

Responsiveness

3 / 5

Catalog median 3 / 5

Cushioning

3 / 5

Catalog median 4 / 5

Energy return

3 / 5

Catalog median 3 / 5

Durability

~400 mi

Catalog median ~400 mi

Within the Nike line it is heavier than the brand's median (295 g / 10.4 oz) and sits lower than its median stack (36 mm).

Closest alternatives

Current shoes with the nearest combination of weight, stack, drop, foam feel and plate.

Nike Run Swift 2

291 g / 10.3 oz · 34 mm · 8 mm drop · — · $75

Nike Run Swift 2: 34 mm heel stack, 8 mm drop, 291 g — specs from independent lab testing.

Saucony Omni 22

286 g / 10.1 oz · 35 mm · 8 mm drop · — · $160

Saucony Omni 22: 35 mm heel stack, 8 mm drop, 285 g — specs from independent lab testing.

Adidas Racer TR21

318 g / 11.2 oz · 34 mm · 8 mm drop · — · $55

Adidas Racer TR21: 34 mm heel stack, 8 mm drop, 318 g — specs from independent lab testing.

Brooks Levitate Stealthfit 6

280 g / 9.9 oz · 33 mm · 8 mm drop · — · $170

Brooks Levitate Stealthfit 6: 33 mm heel stack, 8 mm drop, 281 g — specs from independent lab testing.

Asics GT 1000 15

278 g / 9.8 oz · 36 mm · 8 mm drop · — · $130

Asics GT 1000 15: 36 mm heel stack, 8 mm drop, 278 g — specs from independent lab testing.

Lineage & siblings