Nike / Alphafly

Alphafly 4

Racing2026-09-17 · Global · Online launchChecked 2026-11-01

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

Weight

188 g

All models average 268.9 gDifference from average −80.9 g

Average of 973 models

Drop

8 mm

All models average 6.8 mmDifference from average +1.2 mm

Average of 986 models

Stack (heel)

39 mm

All models average 34.3 mmDifference from average +4.7 mm

Average of 810 models

MSRP

$280.00 USD · US

This modelAll models average

Stack (forefoot): 31 mm
Carbon plate: Yes
Midsole: ZoomX LT / ZoomX / Air Zoom
Outsole: FastShot
Use cases: Race / Marathon

Weight notes 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 × stack788 models shown

Nike Alphafly 4188 g / 39 mm

Weight distribution973 models

95 g385 g

This model 188 gAll models average 268.9 gDifference from average −80.9 g

Drop distribution986 models

0 mm12 mm

This model 8 mmAll models average 6.8 mmDifference from average +1.2 mm

Stack distribution810 models

5 mm60 mm

This model 39 mmAll models average 34.3 mmDifference from average +4.7 mm

Unknown values are excluded. Shoe sizes and measurement conditions vary, so use these averages and distributions as a guide when comparing specifications.

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