The Nike Vaporfly and the Adidas Adios Pro have been the two most dominant names in marathon racing for the better part of a decade. Between them, they've broken world records, paced championship wins, and completely changed what runners expect from a race day shoe. Now both are on version 4, and the gap between them has never been closer — or more interesting.

If you're deciding between these two for your next race, here's everything you need to know.

The Specs Side by Side

On paper these shoes are almost identical — same drop, nearly the same stack, within an ounce of each other in weight, and both priced within $20. The real differences come down to foam feel, plate geometry, and what kind of runner each shoe is optimized for.

The Vaporfly 4 — Refined and Versatile

The Vaporfly 4 is a top-to-bottom update that trims foam where it isn't needed, freeing more energy from the ZoomX midsole. The increased angle of the curved carbon Flyplate unlocks more leverage from your ankle through toe-off, and the updated waffle outsole uses softened blown rubber for smoother transitions.

What makes the Vaporfly special is its range. It's designed to be equally effective from the 10K through the marathon — a broader window than most super shoes. ZoomX foam is incredibly light and energetic, and the Flyplate geometry creates a smooth, propulsive rolling sensation that rewards a midfoot strike but doesn't punish heel strikers the way more aggressive geometry can.

The fit is snug and low-profile — classic Vaporfly feel — with a Vaporweave upper that keeps weight down without sacrificing breathability. Runners who've worn previous Vaporfly versions will feel immediately at home.

Best for: Runners who want a versatile, proven super shoe for any road race distance from 10K to marathon.

View Nike Vaporfly 4 specs on Cadence →

The Adios Pro 4 — Softer and More Cushioned

The Adios Pro 4 represents the biggest departure in the lineup's history. Previous versions were known for a firm, snappy, propulsive feel — a distinctly Adidas character. Version 4 moves toward a softer, more cushioned ride with a re-engineered Lightstrike Pro midsole that's lighter and more responsive, but noticeably softer underfoot than the Adios Pro 3.

The full-length carbon Energy Rods 2.0 are familiar from previous versions — these rods run through the midsole parallel to each other and create a stiff, propulsive platform. An enhanced rocker point promotes smooth forward transitions, and the new Micro Fit upper with integrated LIGHTLOCK band improves lockdown and heel security meaningfully over the previous version.

The softness has divided opinion. Long-time Adios Pro fans who loved the firm, explosive feel have found version 4 less to their liking. But runners coming from softer shoes like the Vaporfly or Alphafly may find it a more natural fit — and at $250 it's $20 cheaper than the Vaporfly 4.

Best for: Runners who want maximum cushioning in a race shoe, or those already familiar with soft super shoe foam who want to try the Adidas platform.

View Adidas Adios Pro 4 specs on Cadence →

The Key Differences

Foam Feel

ZoomX in the Vaporfly is light and snappy with excellent energy return. The new Lightstrike Pro in the Adios Pro 4 is softer and more cushioned than before — closer to ZoomX than ever, but still with a slightly different, more sink-in character. If you prefer a firmer, more connected feel, the Vaporfly edges it. If you want max cushioning in a race shoe, the Adios Pro 4 now competes directly.

Plate Geometry

The Vaporfly uses a single curved carbon Flyplate that creates a smooth rolling sensation. The Adios Pro uses multiple carbon Energy Rods running parallel through the midsole — a different approach that creates a stiffer, more structured platform. Runners who prefer a propulsive snap at toe-off tend to prefer the Energy Rods. Runners who prefer a smooth rolling transition tend to prefer the Flyplate.

Fit

The Vaporfly runs snug — true to size but with a narrow last. The Adios Pro 4's new Micro Fit upper is slightly more accommodating with better lockdown than previous versions. Runners with wider feet may find the Adios Pro 4 more comfortable over 26.2 miles.

Versatility

The Vaporfly is designed for 10K through marathon. The Adios Pro 4 is more specifically optimized for marathon and half marathon distances where its cushioning pays off. For shorter race distances, the Vaporfly or Streakfly are better choices than the Adios Pro.

Which One Should You Choose?

Compare Them Side by Side on Cadence

Want to dig deeper into the specs? Use the Cadence comparison tool to view both shoes side by side — stack height, weight, drop, foam type, and more.

Compare the Vaporfly 4 vs Adios Pro 4 on Cadence →

Not sure which race shoe is right for your running profile? Take the Cadence Shoe Finder Quiz and we'll match you to your best options based on your foot strike, budget, and race goals.