ShoesNikeReact Miler 3

Nike

Nike React Miler 3

Nike React Miler 3. 31.4mm stack, 297g. Retailer specs verified on Running Warehouse.

PR Run Verified
Soft trailsLong ultrasDaily training

PR Run scores

Grip3/5
Cushion4/5
Protection3/5
Durability3/5
Versatility3/5

PR Run derived fit scores

74Great

100-miler readiness

Will this shoe survive a hundred-mile night? 31.4 mm stack, cushion 4/5

49Passable

Descent tolerance

Does it save your toenails on long descents? 21.6 mm forefoot stack

60Solid

Swelling room

Room to grow when your feet swell? 31.4 mm heel stack

62Solid

Grit resistance

Does dust stay outside the shoe? moderate BR breathability

36Passable

Hot-day comfort

How well does it breathe in heat? Standard mesh

37Passable

Achilles-friendly

Kind to a cranky achilles? 9.8 mm drop, heel counter 5/5

Full specs

Drop

9.8 mm

Heel stack

31.4 mm

Forefoot stack

21.6 mm

Weight

297 g

Plate

No

Waterproof

No

Lab measurements

MeasurementValue
Heel counter5/5
Outsole thickness2.4 mm
Tongue padding7.9 mm
Insole removableYes
Insole thickness3.0 mm

Lab numbers from RunRepeat. Sources.

Fit intelligence

True to size.

Fit numbers from the lab. Swell guidance: foot care.

Questions before you race

Is the Nike React Miler 3 good for 100-mile races?

Great. 31.4 mm stack, cushion 4/5. 100-miler readiness score 74/100.

Does the Nike React Miler 3 fit wide feet?

Toebox width has not been measured in the lab yet.

What is the drop on the Nike React Miler 3?

9.8 mm, with a 31.4 mm heel stack and 21.6 mm forefoot.

Is the Nike React Miler 3 good on wet rock?

Lab traction has not been measured for this model yet.

Manufacturer specs

New lab data on soft trails shoes, once a month.

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Image: Nike product photo

Specs: retailer. Verified Sep 2, 2026.

Report inaccurate data: hi@pr.run. Data sources.

Nike React Miler 3 Review, Specs, and Fit (2026) | PR Run