Weight
188 g
All models average 268.6 gDifference from average −80.6 g
Average of 961 models
Nike / Alphafly
Alphafly 4
Alphafly 4 is a marathon racer combining ZoomX LT and ZoomX foam around a carbon-fiber Flyplate, with two forefoot Air Zoom units. Its seamless Atomknit upper uses midfoot cables and an integrated heel structure to hold the foot, while a molded liner adds comfort. A FastShot outsole completes the race-day package.
Key specifications
Drop
8 mm
All models average 6.8 mmDifference from average +1.2 mm
Average of 978 models
Stack
39 mm
All models average 34.2 mmDifference from average +4.8 mm
Average of 802 models
MSRP
$280.00 USD · US
All models average $167.69Difference from average +112.31 USD
Average of 818 models · USD
Stack refers to the heel value.
This modelAll models average
- Stack (forefoot)
- 31 mm
- Carbon plate
- Yes
- Midsole
- ZoomX LT / ZoomX / Air Zoom
- Outsole
- FastShot
- Use cases
- Race / Marathon
- Width options
- Unknown
Weight context Approximate weight in men’s US 8.5 / women’s US 10. Men’s US 10 is listed at approximately 208 g.
IN CONTEXT
Specs in context
Weight × stack780 models shown
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Weight distribution961 models
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95 g385 g
This model 188 gAll models average 268.6 gDifference from average −80.6 g
Drop distribution978 models
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0 mm12 mm
This model 8 mmAll models average 6.8 mmDifference from average +1.2 mm
Stack distribution802 models
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5 mm60 mm
This model 39 mmAll models average 34.2 mmDifference from average +4.8 mm
MSRP distribution · USD818 models
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$50.00$500.00
This model $280.00All models average $167.69Difference from average +$112.31
Unknowns are excluded. Measurement sizes and conditions vary; averages and distributions describe the recorded numbers. Prices are grouped by currency; markets and tax treatment may differ.
BY REGION
Release dates & MSRP
Regional releases
This is the limited global early launch; broader availability was planned for October 29. Japan announced the Proto color for October 29 and other colors for November 12.
SERIES HISTORY
Alphafly series
2026-09-17Global · Online launch
2024-01-04Global · Online launch
2022-06-22JP · Online launch
Alphafly NEXT% 2
- · - · - drop
2020Global · Announced
Alphafly NEXT%
- · - · - drop
Listed by release date, newest first.
SIMILAR SPECIFICATIONS
Similar specifications
Models in the same category with similar weight, stack and drop.
Women194 g · 40 mm · 8 mm
195 g · 40 mm · 8 mm
195 g · 40 mm · 8 mm
199 g · 39.5 mm · 8 mm
CHECK THE SOURCES
Sources & notes
Product specificationsChecked 2026-11-01nike.jpChecked 2026-09-19nike.comChecked 2026-09-19running-culture.deChecked 2026-10-01nike.comChecked 2026-11-01
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