Nike Vaporfly 4
£240
UK RRP
Midsole to scale · mm · red dashes mark the 40mm road limit
- Weight
- 184 g
- men's US 9
- Stack
- 35 / 29 mm
- heel / forefoot · drawn above, against the 40mm line
- Drop
- 6 mm
- Plate
- carbon fibre
- Foam
- ZoomX
- Stability
- balanced
- Competitive life
- ~240 km
- before the foam stops giving it back
- Built for
- 5K · 10K · Half · Marathon
Verdict
The most versatile super shoe on sale. Light enough for a 5K, cushioned enough for a marathon, and the fourth generation fixed the upper problems that made the VF3 divisive.
■ Caution
Less cushioning than the Alphafly for a full marathon if you are on your feet over three and a half hours. Outsole rubber is minimal — treat wet corners with respect.
Straight answers
- Is the Nike Vaporfly 4 legal for road racing?
- Yes. The Nike Vaporfly 4 measures 35mm at its highest point, 5.0mm inside the World Athletics 40mm road limit. The limit only binds Applicable Competitions; most club and local races apply no shoe rule at all.
- How much does the Nike Vaporfly 4 weigh?
- 184g in a men's US 9 (UK 8), by the manufacturer's stated figure. Weight moves roughly 3.5% per UK size step, so a UK 11 weighs materially more than the spec sheet says.
- What is the stack height and drop of the Nike Vaporfly 4?
- 35mm at the heel and 29mm at the forefoot — a 6mm drop. A carbon-fibre plate runs through ZoomX.
- How long does the Nike Vaporfly 4 last?
- We estimate roughly 240km of competitive life — the point at which the foam has degraded enough that you are no longer getting the benefit you paid £240 for, not the point at which the shoe falls apart. Spread over race cycles, that is what the cost-per-race figure on this page is built from.
- Is the Nike Vaporfly 4 good for a marathon?
- Yes — the marathon is one of the distances it is built for (5k, 10k, half marathon and marathon). The most versatile super shoe on sale. Light enough for a 5K, cushioned enough for a marathon, and the fourth generation fixed the upper problems that made the VF3 divisive.
Legality by event
Vaporfly 4 at 35mm · every panel drawn to one scale
Road racing
40mm · 5.0 clear
Track events
20mm · 15.0 over
Field events
20mm · 15.0 over
Cross country (spiked shoes)
20mm · 15.0 over
Cross country (non-spiked)
40mm · 5.0 clear
Race walking
40mm · 5.0 clear
Mountain and trail
no limit
Drawn from the manufacturer’s stated stack height, which is not the measurement World Athletics takes — the rule is measured on a men’s US 8.5 sample, and larger sizes may legally exceed it. An indication, not a ruling. Limits bind Applicable Competitions; most club and local races apply no shoe rule at all. What that means in practice.
Reading — what would the Vaporfly 4 save you?
Time bought back
−2:45 – 4:06
Off 3:45:00, that lands you at 3:40:54 on the optimistic end.
- Per race
- £63
- ~3.8 races in the foam
- Per second
- £0.31
- whole-life basis
- Sticker
- £240
- UK recommended retail
Economy gain 3.2–4.4% v. a traditional flat, adjusted for pace and your current shoes. Full method.
Manufacturer-stated specs unless marked estimated · last reviewed 2026-09-04 · prices are UK RRP; check the retailer for the live figure.