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Buyer's Guide

Nike Vaporfly 4 Review & Sizing Guide

Published Updated

The Vaporfly 4 is the current Vaporfly to buy for lighter race speed, especially 5K to half marathon, with marathon comfort less universal than Alphafly.

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Key facts

Popularity
Current-generation Vaporfly with strong race-day attention
Comfort
Lighter, lower, and more refined than v3; less maximal than Alphafly
Fit
True to size for most; improved upper and lockdown over v3
Value
Best for runners who specifically want Nike's newest lightweight racer
Use case
Race day from 5K to half marathon, viable marathon shoe for some runners

Full breakdown

Released in 2025, Vaporfly 4 is the line's reset after the taller, softer Vaporfly 3 — Nike pulling the platform back down toward the lean, low-slung feel that made the original 4% feel revolutionary. It keeps the ZoomX-and-carbon recipe that defined the super-shoe era but rebuilds it lighter, positioned as the brand's do-everything racer below the maximal Alphafly.

FAQ

Is the Nike Vaporfly 4 worth buying?

Yes, if you want the lightest current Vaporfly and will use it for racing rather than daily training. Nike says the Vaporfly 4 is the lightest model in the franchise and still uses ZoomX plus a carbon Flyplate as its speed system. Skip it if you already own discounted Vaporfly 3 pairs, since the value gain is small.

How does the Vaporfly 4 fit?

Start true to size unless you already size differently in Nike racers. RoadTrailRun testers described the upper as comfortable and secure, with simple lacing and a race-ready fit. Wide-foot runners should still treat it as a narrow racing platform.

Is the Vaporfly 4 better than Vaporfly 3?

It is better if your priority is low weight, cleaner lockdown, and a smoother current racer. RunRepeat called it a smart update with a lighter build and improved fit rather than a magic performance leap. Keep the Vaporfly 3 if you prefer more stack and a softer marathon feel.

Can you run a marathon in the Vaporfly 4?

Yes, but it is not the most forgiving Nike marathon option, so choose it only if you want a low, direct race feel. Nike markets the model across distances from 5K to marathon as a versatile racer, while RoadTrailRun feedback suggests some runners may want more forefoot cushion late in the marathon than Vaporfly 4 gives.

Should I buy Vaporfly 4 or Alphafly 3?

Buy Vaporfly 4 for a lighter, more direct racing shoe. Buy Alphafly 3 if you want more underfoot protection, Air Zoom pod pop, and a marathon-focused feel. RunRepeat specifically contrasts the Vaporfly platform with Alphafly stability and stack differences.