Reddit · r/RunningShoeGeeks · Sep 6, 2026 · summarized
PositiveFirm, propulsive and light; their 5K shoe.
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Runners find the Vaporfly 4 light, snappy and propulsive.
A score out of 100 for how well reviewed a product is next to others of its kind. It rises with positive reviews and with how many there are; negative and mixed reviews take points off. The best in each category scores in the 90s.
So a handful of glowing reviews can’t beat a product lots of people like. No sponsored placements.
Showing 16 reviews mentioning fast Show all
Reddit · r/RunningShoeGeeks · Sep 6, 2026 · summarized
PositiveFirm, propulsive and light; their 5K shoe.
Reddit · r/RunningShoeGeeks · Apr 30, 2026 · summarized
PositiveThey set a 17:32 5k PB in the Vaporfly 4 after a 50 km break-in and say it also works very well for marathon training long runs, better than the Zoom Fly 6.
Reddit · r/RunningShoeGeeks · Apr 30, 2026 · summarized
PositiveThey call the Vaporfly 4 a great, fast shoe that feels natural underfoot and set their 10k and half marathon PRs in it.
Reddit · r/RunningShoeGeeks · Dec 2, 2025 · summarized
PositiveThey own both the Vaporfly 4 and the Adios Pro 4 and use the Vaporfly up to a half marathon. They find it tuned for speed, while the adidas suits longer distances.
Reddit · r/RunningShoeGeeks · Nov 15, 2025 · summarized
PositiveHas worn every Vaporfly and calls this the best yet after about 25K, very natural and easy to run fast in. The ZoomX is fairly firm with better heel stability than the AP4, but the laces are poor and come loose.
Reddit · r/RunningShoeGeeks · Nov 15, 2025 · summarized
PositiveLikes them for 5k and 10k racing and plans to use a second pair for workouts.
Reddit · r/RunningShoeGeeks · Oct 9, 2025 · summarized
PositiveThey like the lower stack of the Vaporfly 4 and say the foam has more pop and energy return than the 3. They describe it as a lighter, more aggressive version and expect to buy another pair.
Reddit · r/RunningShoeGeeks · Mar 29, 2025 · summarized
PositiveAfter a 6-mile workout, this runner finds the Vaporfly 4 the lightest super shoe they've felt: aggressive pop, easy turnover, a more dialed-in upper than the VF3, and good for races up to a half marathon.
Blog · Unattached Runner – Seiya Ishikawa · summarized
PositiveAbout 20 g lighter, handles all speed work, simple to use, and about ¥6,000 cheaper. The cushioning is slightly reduced.
Blog · Hokkaido Deli-Cam Run · summarized
PositiveShockingly light (153 g at 25.5 cm) with a better fit and smooth leg turnover: a real weapon for the back half of a marathon. If you want the VF3's explosive pop, you may find it slightly lacking.
Blog · Tomo-Ran – Ranmaru · summarized
PositiveUltra light, with direct ground feel and strong midfoot rebound that is hard to stop once rolling. A record weapon up to the half. For him the full marathon was very taxing, it is narrow for wide feet, and it is overkill and pricey for jogging.
Blog · Masa's Running Diary · summarized
PositiveA sub-3.5 runner who ignored the 'half only' warnings: at 30 km he felt surprisingly fresh. He faded only on small climbs after 35 km, it was his easiest marathon finish yet, and his hip held up. 3:12 on a course that doesn't suit him.
Blog · iRun – Ben Kaplan · summarized
PositiveA race-and-shoe story: landing on the balls of his feet, he felt the propulsion 'like pulling a Ferrari onto the Autobahn'. He finally found a runner's high at the Ottawa Marathon, and runners at the finish asked about his shoes.
Blog · Runner's World – Jeff Dengate, Thomas Hengge · summarized
PositiveA snappy, versatile road racer: exceptionally fast for intervals and marathon-pace runs. The extra arch room helps high arches. On 15–16-mile workouts it firmed up and one tester wished for the Alphafly. Heel slip is listed as a con.
Blog · Sub3 – Patrick Hayes · summarized
PositiveAfter PB-ing from 5K to half in it, he raced Seville in it: five reasons to consider it for a marathon despite the usual caution. It works best for engaged forefoot or light midfoot strikers. Grip isn't as confidence-inspiring as the VF3, so a wet race would give him pause.
Blog · RunToTheFinish – Cortney Berling · summarized
PositiveRated 88%. A significant update: the weight drop keeps it a fast shoe for shorter distances, best at half marathon and below, though you could get away with a marathon. It may feel more unstable and still lacks durability.
Runners find the Vaporfly 4 light, snappy and propulsive. Reactions to the upper are mixed.
Of the 29 reviews with a clear verdict, 69% are positive, 17% mixed and 14% negative. The praise mentioned most is fast. The most common complaint is blisters.
The complaints reviewers mention most: blisters (2 reviews) and unstable (1 review). For example: Got the worst blisters they have ever had from these and bought blister patches to try again the next day.
We collected and summarized 29 experiences shared on Reddit and blogs, with links to the original sources. Reviews submitted here are checked for spam before they appear. Every review, submitted here or collected, is read as positive, mixed or negative.
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