Shoes
Nike
Zoom Fly 6

Nike Zoom Fly 6 review

The Zoom Fly is back to its racing roots: real ZoomX, a carbon plate and 244 g in a men’s US 9. Reviewers like the ride and argue about the toe box and the heel.

Drop: 8 mm
Heel stack: 40 mm
Forefoot: 32 mm
Weight: 244 g
Support: Neutral
Plate: Carbon

men’s US 9, listed by Doctors of Running, Believe in the Run and Running Warehouse, as listed. Updated Oct 13, 2026 · 8 sources

Our verdict

Race-day geometry for training days.

The Zoom Fly 6 is a neutral, carbon-plated super trainer that puts ZoomX over a firmer SR-02 base, so it feels close to Nike’s racers while lasting far longer. It suits midfoot and forefoot landers with a narrow to medium foot who want one shoe for tempo, long runs and half or full marathon racing.

Strong points

Much lighter than past Zoom Flys: 244 g in a men’s US 9
ZoomX over a carbon plate, close to a race-shoe feel
Versatile from long runs to marathon-pace work
Outstanding durability in RunRepeat’s lab and after 400 km at Runnea
Gusseted tongue gives secure lockdown

Weak points

Low, snug toe box: 24.5 mm high in RunRepeat’s lab
Narrow heel that can feel wobbly for heel strikers
Less pop than a full race shoe
Wet grip below average in the lab

Who it fits

You land on the midfoot or forefoot
You want a training partner for a plated racer
You race the half or full marathon without a super shoe
Your foot is narrow to medium

Who should skip it

Your forefoot is wide or your toes need height
You need real stability
Most of your running is slow and easy

Shoe profile

Where the Zoom Fly 6 sits among the 395 shoes in our catalogue.

Axis	Zoom Fly 6
Cushioning	64
Lightness	67
Stability	30
Drop	45
Response	80

Fig. 1 · How to read it. Each axis runs from 0 at the centre to 100 at the edge. Cushioning, lightness and drop are the shoe’s rank in the catalogue from listed figures; stability and response are scored from the support type, the plate, the rocker and the intended use. The dotted grey line is the catalogue median. Source: Strideprint catalogue (cat).

Where it sits in the catalogue

Weight244 g, lighter than 66% of shoes

Drop8 mm, higher than 45% of shoes

Heel stack40 mm, higher than 64% of shoes

Forefoot stack32 mm, higher than 52% of shoes

Fig. 2 · Distribution of listed figures across the catalogue. Bar height is the number of shoes in each bracket. Weight: 300 shoes, average 257.2 g. Drop: 306 shoes, average 7.1 mm. Heel stack: 255 shoes, average 38 mm. Forefoot stack: 253 shoes, average 31.1 mm. Source: Strideprint catalogue (cat), listed values.

How it feels

Written from 5 published tests. We quote measurements, not impressions we did not have.

Soft on top, firmer below. ZoomX over a firmer SR-02 base, 36.5 AC in RunRepeat’s lab: soft on top and deep enough for marathon-pace long runs.

Steady up front, narrow at the heel. Mild guidance from a stiff forefoot and torsional rigidity of 5 out of 5, but a narrow 87.9 mm heel that can wobble for heel strikers.

Propulsive, without full race pop. A carbon plate, a steep rocker and 67.0 percent forefoot energy return push you along, though reviewers miss the pop of Nike’s racers.

Soft on top, firmer below. The midsole stacks ZoomX over a firmer SR-02 base, with the carbon plate between them. Doctors of Running found the ZoomX more soft and cushioned than responsive, and Believe in the Run felt soft foam underfoot over a supportive base that gives a little more with mileage.

RunRepeat measured 36.5 AC, close to its 35.5 AC average, and 39.7 mm at the heel; RTINGS measured 42.5 mm. Either way there is enough foam for the marathon-pace long runs Doctors of Running rate as its strength.

Steady up front, narrow at the heel. Doctors of Running class it neutral with mild guidance from the wide platform, the stiff forefoot and a central groove, enough for mild needs but not moderate ones. RTINGS find good lateral stability from the firm forefoot and gusseted tongue, but warn that the tall heel can feel wobbly for heel strikers.

RunRepeat measured a narrow 87.9 mm heel against a 91.1 mm average, alongside a torsional rigidity of 5 out of 5.

Propulsive, without full race pop. The carbon plate and a fairly steep forefoot rocker drive the toe-off. RunRepeat measured 67.0 percent energy return at the forefoot against a 61.4 percent average, and a stiff 21.5 N bend force.

One Believe in the Run tester likens the ride to the Alphafly without its pop, and RunRepeat finds the SR-02 base lacks bounce. Doctors of Running note that the plate and rocker loosen with wear, and warn that runners with limited toe mobility may struggle.

RunRepeat measured a narrow 87.9 mm heel against a 91.1 mm average, alongside a torsional rigidity of 5 out of 5.

Which runs it’s for

Run	Fit	Why	Source
Easy runs	Can do	Believe in the Run found it comfortable on easy runs; RTINGS score daily training lowest of its uses.	Believe in the Run, RTINGS
Long runs	Made for it	One of its best uses for Doctors of Running, and 7.4 out of 10 at RTINGS.	Doctors of Running, RTINGS
Tempo	Made for it	Its top score at RunRepeat, 90 out of 100, and a strength for Doctors of Running.	RunRepeat, Doctors of Running
Intervals	Can do	Believe in the Run ran 800 m repeats in it; Doctors of Running find it less suited to fast 5 km and 10 km efforts.	Doctors of Running, Believe in the Run
Half marathon race	Made for it	A half marathon racer for runners who cannot use super shoes, per Doctors of Running.	Doctors of Running, RTINGS
Marathon race	Made for it	Doctors of Running and RTINGS both rate it for marathon racing and marathon-pace work.	RunRepeat, Doctors of Running, RTINGS
Walking	Not for it	Doctors of Running rate it poor for walking and standing.	Doctors of Running

Source: Believe in the Run, RTINGS, Doctors of Running, RunRepeat

What the tests say

Published tests agree the Zoom Fly 6 is the best Zoom Fly in years: a durable carbon-plated trainer for long runs and marathon-pace work, with a snug, low toe box. They split on how stable it is and how lively the foam feels.

Test	Type	Our reading	In one sentence	Source
RunRepeat	Lab	Positive	RunRepeat scores it 88 out of 100: a durable super trainer that handles most paces, held back by a narrow toe box.	Read
Doctors of Running	Review	Positive	Doctors of Running grade it B+ to A minus overall: a lighter performance trainer that partners Nike’s racers or races on its own.	Read
Believe in the Run	Review	Positive	Believe in the Run call it a contender for most improved shoe of 2024 and the best Zoom Fly yet.	Read
RTINGS	Lab	Mixed	RTINGS see a responsive carbon-plated super trainer that is not light enough for maximum race-day efficiency.	Read
Runnea	Review	Positive	Runnea, after more than 400 km, sees one of Nike’s most sensible options for hard training with occasional racing.	Read

Table 1 · Consensus of published tests. “Our reading” sums up each test’s own conclusion, in our words. No scores are converted or invented. Accessed Oct 13, 2026.

They agree

The best Zoom Fly in yearsRunRepeat says it fixes the bulk and foam problems of the Zoom Fly 5, Doctors of Running say the line is back to its roots, and Believe in the Run call it the best Zoom Fly yet.
A super trainer, not a race-day shoeDoctors of Running, Believe in the Run and RTINGS all place it as a plated trainer that sits beside Nike’s racers rather than replacing them.
Snug, low-volume forefootRunRepeat, Doctors of Running, Believe in the Run, RTINGS and Runnea all describe a close, low toe box that can trouble wide feet.
True to size in lengthRunRepeat’s owner vote, Doctors of Running, Believe in the Run and RTINGS all land on true to size.

They split

How stable is it?RTINGS find good lateral stability from the firm forefoot, Believe in the Run felt stable despite the tall stack, and Runnea calls stability reasonable for a plated shoe. RunRepeat says it could be more stable, and one Doctors of Running tester felt the soft, tall foam adds some instability.
Lively or muted?RTINGS rate responsiveness well and one Believe in the Run tester found it propulsive. The other likens it to the Alphafly without its pop, Doctors of Running found it more cushioned than responsive, and RunRepeat says the SR-02 base lacks bounce.
Grip in the wetBelieve in the Run report good traction on wet pavement. Doctors of Running found it slides on slick roads, and RunRepeat measured a wet grip of 0.42 against a 0.53 average.

Read the full positions, point by point

The best Zoom Fly in years. RunRepeat says it fixes the bulk and foam problems of the Zoom Fly 5, Doctors of Running say the line is back to its roots, and Believe in the Run call it the best Zoom Fly yet. (RunRepeat, Doctors of Running, Believe in the Run)

A super trainer, not a race-day shoe. Doctors of Running, Believe in the Run and RTINGS all place it as a plated trainer that sits beside Nike’s racers rather than replacing them. (Doctors of Running, Believe in the Run, RTINGS)

Snug, low-volume forefoot. RunRepeat, Doctors of Running, Believe in the Run, RTINGS and Runnea all describe a close, low toe box that can trouble wide feet. (RunRepeat, Doctors of Running, Believe in the Run, RTINGS, Runnea)

True to size in length. RunRepeat’s owner vote, Doctors of Running, Believe in the Run and RTINGS all land on true to size. (RunRepeat, Doctors of Running, Believe in the Run, RTINGS)

How stable is it?. RTINGS find good lateral stability from the firm forefoot, Believe in the Run felt stable despite the tall stack, and Runnea calls stability reasonable for a plated shoe. RunRepeat says it could be more stable, and one Doctors of Running tester felt the soft, tall foam adds some instability. (RunRepeat, Doctors of Running, Believe in the Run, RTINGS, Runnea)

Lively or muted?. RTINGS rate responsiveness well and one Believe in the Run tester found it propulsive. The other likens it to the Alphafly without its pop, Doctors of Running found it more cushioned than responsive, and RunRepeat says the SR-02 base lacks bounce. (RunRepeat, Doctors of Running, Believe in the Run, RTINGS)

Grip in the wet. Believe in the Run report good traction on wet pavement. Doctors of Running found it slides on slick roads, and RunRepeat measured a wet grip of 0.42 against a 0.53 average. (RunRepeat, Doctors of Running, Believe in the Run)

How it’s built

A two-foam super trainer build: ZoomX on top, firmer SR-02 below, a full-length carbon Flyplate between them, a woven mesh upper and a web of rubber underneath.

ZoomX over SR-02 with a full-length carbon Flyplate between them, a woven mesh upper, a semi-gusseted tongue and 3.2 mm of rubber that wears slowly.

#	Part	Measure
1	UpperWoven mesh	Breathability 3 / 5
2	Tongue	6.1 mm
3	Heel	Stiffness 4 / 5
4	MidsoleZoomX and SR-02	Hardness 36.5 AC
5	PlateCarbon Flyplate	Bend force 21.5 N
6	Insole	3.0 mm
7	Outsole	3.2 mm

Fig. 3 · Side profile. Stack heights to scale (listed: 40 mm heel, 32 mm forefoot; measured: 3.2 mm outsole); the split between the two foams is not measured and is drawn at mid-height. Dashed: insole, hidden. Sources: Running Warehouse, RunRepeat, Believe in the Run, Doctors of Running, RTINGS, Runnea.

Upper. A woven mesh upper that Believe in the Run found light and secure, with no hot spots. RunRepeat scored breathability 3 out of 5, below its 3.6 average.
Tongue. Semi-gusseted on both sides and padded, 6.1 mm in RunRepeat’s lab. Doctors of Running praise the lockdown, though one tester felt lace bite where the padding sits.
Heel. A fairly stiff counter, 4 out of 5 at RunRepeat, with no heel tab. Doctors of Running found the padded collar rides high and pressed on the ankle at first, and one Believe in the Run tester noted slight heel lift.
Midsole. ZoomX on top of a firmer SR-02 base. RunRepeat matched the ZoomX under the microscope to the foam of the Invincible 3 and Pegasus Plus rather than the Alphafly 3, and reports ReactX in the heel.
Plate. A full-length carbon fiber plate. RunRepeat says its forefoot resembles the Vaporfly 3 plate while the midfoot and heel are tuned for slower paces; RTINGS describe it as thin and flexible.
Insole. Removable, 3.0 mm thick against a 4.4 mm average.
Outsole. A thin web of rubber covering the heel and forefoot, with an open midfoot where Doctors of Running and Runnea found small stones can lodge. RunRepeat measured 3.2 mm of rubber and a wet grip of 0.42, below the 0.53 average.

A two-foam super trainer build: ZoomX on top, firmer SR-02 below, a full-length carbon Flyplate between them, a woven mesh upper and a web of rubber underneath.

1. Upper. A woven mesh upper that Believe in the Run found light and secure, with no hot spots. RunRepeat scored breathability 3 out of 5, below its 3.6 average.

2. Tongue. Semi-gusseted on both sides and padded, 6.1 mm in RunRepeat’s lab. Doctors of Running praise the lockdown, though one tester felt lace bite where the padding sits.

3. Heel. A fairly stiff counter, 4 out of 5 at RunRepeat, with no heel tab. Doctors of Running found the padded collar rides high and pressed on the ankle at first, and one Believe in the Run tester noted slight heel lift.

4. Midsole. ZoomX on top of a firmer SR-02 base. RunRepeat matched the ZoomX under the microscope to the foam of the Invincible 3 and Pegasus Plus rather than the Alphafly 3, and reports ReactX in the heel.

5. Plate. A full-length carbon fiber plate. RunRepeat says its forefoot resembles the Vaporfly 3 plate while the midfoot and heel are tuned for slower paces; RTINGS describe it as thin and flexible.

6. Insole. Removable, 3.0 mm thick against a 4.4 mm average.

7. Outsole. A thin web of rubber covering the heel and forefoot, with an open midfoot where Doctors of Running and Runnea found small stones can lodge. RunRepeat measured 3.2 mm of rubber and a wet grip of 0.42, below the 0.53 average.

Durability. One of its strongest points. RunRepeat scored the toe box and heel padding 5 out of 5 and measured only 0.8 mm of outsole wear. Runnea found the upper and outsole in good shape after more than 400 km, with wear on an exposed lateral piece, while Doctors of Running saw early heel wear and expect average mileage.

Specs, listed and measured

Every figure carries its source.

Drop, mm

Doctors of Running8

RunRepeat9.6

RTINGS9.7

Heel stack, mm

Doctors of Running40

Believe in the Run42

RunRepeat39.7

RTINGS42.5

Forefoot stack, mm

Doctors of Running32

RunRepeat30.1

Weight (men’s), g

Doctors of Running244

RunRepeat248

RTINGS247.1

Spec	Listed	Measured
Drop	8 mm nike.com	9.6 mm RunRepeat 9.7 mm RTINGS
Heel stack	40 mm Running Warehouse 42 mm Believe in the Run	39.7 mm RunRepeat 42.5 mm RTINGS
Forefoot stack	32 mm Running Warehouse	30.1 mm RunRepeat
Weight, men’s US 9, listed by Doctors of Running, Believe in the Run and Running Warehouse	244 g Doctors of Running	248 g RunRepeat 247.1 g RTINGS
Support	Neutral Running Warehouse	–
Plate	Carbon nike.com	–
Surface	Road nike.com	–

Fig. 4 · Listed vs measured. Bars start at zero. Sources: Doctors of Running, RunRepeat, RTINGS, Believe in the Run.

Lab measurements

Spec	Measured
Midsole hardness	36.5 AC RunRepeat
Energy return	67% RunRepeat
Flex force	21.5 N RunRepeat
Torsional rigidity	5 / 5 RunRepeat
Heel counter stiffness	4 / 5 RunRepeat
Toe box width	72.6 mm RunRepeat

Spec	Measured
Toe box height	24.5 mm RunRepeat
Outsole thickness	3.2 mm RunRepeat
Insole thickness	3 mm RunRepeat
Tongue thickness	6.1 mm RunRepeat
Traction coefficient	0.42 RunRepeat
Breathability	3 / 5 RunRepeat

Sizing and fit

Your usual size works for most; the debate is about toe box height, not length.

Length

True to size

Widths

standard

Toe room

Tight, especially in height. RunRepeat measured a 72.6 mm toe box with only 24.5 mm of height, among the most compact in its lab, and Believe in the Run found it short and shallow. Doctors of Running found the width acceptable but the vertical room limited.

RunRepeat, Doctors of Running, Believe in the Run

Full sizing notes from testers

RunRepeat’s owner vote, with 523 responses, says true to size, and Doctors of Running, Believe in the Run and RTINGS agree. Doctors of Running suggest half a size up only if low toe boxes bother you, while Believe in the Run advise against sizing up because it can cause heel slip.

Width options are unclear: RunRepeat lists normal and wide, but Running Warehouse stocks D width only and Doctors of Running found no wide version.

RunRepeat, Doctors of Running, Believe in the Run, RTINGS, Running Warehouse

Vs Zoom Fly 5

A return to form: real ZoomX instead of a recycled core, a much lighter build and a reworked outsole.

Few reviewers miss the Zoom Fly 5: testers at Doctors of Running and Believe in the Run describe the earlier versions as heavy and blocky. If you own one and like it, nothing forces a change; if it felt sluggish, version 6 is the fix.

Version history: Zoom Fly 5 to Zoom Fly 6

Real ZoomX replaces the recycled core. RunRepeat found genuine ZoomX where the Zoom Fly 5 used a recycled Next Nature version, which Believe in the Run also mention. (RunRepeat, Believe in the Run)

Much lighter. RunRepeat gives about 280 g for the Zoom Fly 5 against 248 g measured on the Zoom Fly 6. (RunRepeat)

New outsole. Redesigned with a cutout under the carbon plate and two heel pods, per RunRepeat. (RunRepeat)

Closer to Nike’s racers. Doctors of Running say the line had gained weight and lost its edge, and that version 6 returns to a lighter, race-derived design with Alphafly-like geometry. (Doctors of Running)

Alternatives compared

Each one fixes one thing the Zoom Fly 6 does not do.

**Table 2 · Listed figures.** Source: Strideprint catalogue (cat).

	Nike Zoom Fly 6	Nike Vaporfly 4	ASICS Magic Speed 5	ASICS Superblast 3	Mizuno Wave Rebellion Flash 2
Pick it for	This page	Faster	Lighter	More cushion	Lower drop
Drop	8 mm	6 mm	7 mm	8 mm	0.5 mm
Heel stack	40 mm	36 mm	37.5 mm	47 mm	35 mm
Weight	244 g	190 g	196 g	238 g	243 g
Support	Neutral	Neutral	Neutral	Neutral	Neutral

Questions runners ask

Is the Nike Zoom Fly 6 a super shoe?

Not quite. The Zoom Fly 6 is a super trainer: ZoomX foam and a full-length carbon plate like Nike’s racers, with a firmer SR-02 base and a more durable build. Doctors of Running and Believe in the Run see it as a training partner to the Vaporfly and Alphafly, and RTINGS find it not light enough for maximum race-day efficiency.

Is the Zoom Fly 6 good for a marathon?

For many runners, yes. Doctors of Running rate the Zoom Fly 6 strongest at tempo, long runs and marathon pace, and see it as a half or full marathon racer for runners who cannot use super shoes. RTINGS score it 7.4 out of 10 for half and full marathon racing.

Does the Zoom Fly 6 fit true to size?

Yes in length: RunRepeat’s owner vote, Doctors of Running, Believe in the Run and RTINGS all say the Zoom Fly 6 fits true to size. The toe box is low, 24.5 mm high in RunRepeat’s lab, so Doctors of Running suggest half a size up only if low toe boxes bother you.

Is there a wide Zoom Fly 6?

Sources disagree. RunRepeat lists normal and wide, but Running Warehouse stocks D width only and Doctors of Running found no wide option. With a toe box RunRepeat measured among the most compact in its lab, wide feet should try the Zoom Fly 6 on first.

Zoom Fly 6 or Zoom Fly 5?

The Zoom Fly 6. RunRepeat measured 248 g against about 280 g for the Zoom Fly 5, and found real ZoomX instead of the recycled foam of the older shoe. Testers at Doctors of Running and Believe in the Run describe version 6 as the one that finally fixes the line.

Is the Zoom Fly 6 good for heel strikers?

With caution. RTINGS find the tall heel of the Zoom Fly 6 can feel wobbly for heel strikers, and RunRepeat measured a narrow heel that may not suit runners who land off-centre. Doctors of Running still rate the heel bevel as good. Runners who land on the midfoot or forefoot get the most from it.

How much does the Zoom Fly 6 weigh?

The listed weight for a men’s US 9 is 244 g, per Doctors of Running, Believe in the Run and Running Warehouse; RunRepeat and RTINGS weighed 248 g and 247.1 g. That is light for a 40 mm heel but not racer light: 62 of the 150 neutral road shoes weighed in a men’s US 9 in our catalogue are lighter.

How long does the Zoom Fly 6 last?

Longer than most fast shoes. RunRepeat measured only 0.8 mm of outsole wear and top scores for upper durability, and Runnea found the Zoom Fly 6 in good shape after more than 400 km. Doctors of Running saw early heel wear and expect average durability.

Sources

RunRepeat, Nike Zoom Fly 6 lab review (Carlos Sánchez, updated February 2026). Accessed Oct 13, 2026.
Doctors of Running, Nike Zoom Fly 6 Review (David Salas and Matt Klein, January 2025). Accessed Oct 13, 2026.
Believe in the Run, Nike Zoom Fly 6 Review: Finally, an Alphafly Trainer (November 2024). Accessed Oct 13, 2026.
RTINGS, Nike Zoom Fly 6 review (updated June 2026). Accessed Oct 13, 2026.
Runnea, Nike Zoom Fly 6 (Jorge García Betanzos, updated 2026). Accessed Oct 13, 2026.
Running Warehouse, Nike Zoom Fly 6 Men’s Shoes. Accessed Oct 13, 2026.
Strideprint, Strideprint running shoe catalogue (ranks computed on 2026-10-13). Accessed Oct 13, 2026.
nike.com · Drop, Plate, and Surface, listed
cat: Strideprint catalogue, 395 shoes

How we review. We read published tests, brand and retailer pages and lab measurements, cross-check the figures and flag where they disagree. We did not test this shoe ourselves. Last updated October 13, 2026.

Is it your pair?Start your fitting