Adidas Adizero Adios Pro 4: A Near-Marathon Distance Test of Adidas's Carbon Racer

Introduction

The Adidas Adizero Adios Pro 4 has impressed in shorter, faster running, but the real question for any carbon racer is how it behaves over the full marathon distance. To put that to the test, a long solo effort was mapped out: an easy run to the track, a long stretch of track laps, and a run home, pushing the shoes deep into near-marathon territory at around 23 miles in one outing.

The picture that emerged is of a genuinely exciting, energetic race shoe with a couple of fit quirks worth knowing about before race day.

Ride Performance: Lively, Punchy, and More Stable

Underfoot, the Adios Pro 4 delivers exactly what you want from a carbon racer. There is lots of energy in the midsole, plenty of spring back with every push, and the rocker geometry gets heavily involved in rolling you through smooth transitions. At marathon pace in the first half of the long run, the shoes felt punchy, stable, and comfortable, with a wide, balanced platform for a clean midfoot or forefoot landing.

A key change compared with the Adizero Adios Pro 3 concerns stability. The previous version could tilt you toward the lateral side late in a marathon when form degraded, with a heel roll-out and a cut-away that encouraged a little pronation when you were further back on the heel. That seems fixed here: the platform holds you more securely and reliably, giving an easier ride if you start dropping back on your heels. Even though the foam feels softer than the Adios Pro 3, the shoe actually feels a touch more stable.

How It Held Up When the Legs Faded

The most important marathon question is what the shoe does when you stop running well. Here the Adios Pro 4 earns its keep. Road protection and cushioning held up throughout the long effort, with no foot fatigue despite hours of impact. Rather than hanging you out to dry when the pace sagged and the hips tightened, the platform stayed comfortable and balanced, soaking up impact and giving back plenty when effort returned.

That late-run security matters if you plan to be in a race shoe for four hours or longer. This is a shoe that rewards good form with a lively, immediate ride, but it protects you when you are struggling rather than leaving you for dead. That combination makes it a genuine contender for chasing a personal best on race day.

Fit Notes and Things to Watch

Two fit issues surfaced on the long run. First, the toe box narrows slightly toward the front, and the big toe sits close to the end. During the ragged final miles, the big toe began tapping the end of the shoe and catching, with toenails starting to lift, which contributed to cutting the run short. This was most noticeable when trying to pick up the pace, and it was not an issue encountered in the Metaspeed Sky Paris, a shoe that feels slightly narrower and more precise but also more nimble and snappy. Whether it occurs at all may depend on how well you are moving late in the race.

Second, there was some rubbing on the left heel from the thin heel collar, just near the Achilles. It appeared partway through the run but did not worsen, and may be fixable with a slightly padded sock. Elsewhere, the upper fitted super comfortably for the first 13 miles and beyond.

Buying Advice

If you are shopping for a marathon race shoe with real punch, the Adizero Adios Pro 4 makes a strong case. The midsole is every bit as lively as you would hope, with lots of energy, good immediacy, and enough protection for the late miles. The improved stability over its predecessor makes it easier to run in when fatigue sets in, which is exactly what you want for the marathon.

Consider sizing and fit carefully if you have longer toes or a sensitive big toe, since the narrowing toe box is the one clear trade-off. Against a shoe like the Metaspeed Sky Paris, this is the slightly bigger, more protected platform, while the Metaspeed feels more precise and snappy. Both sit in the same ballpark, which is high praise.

Conclusion

Despite coming up a little short of the full marathon distance on the day, the long test was enough to form a clear verdict: the Adizero Adios Pro 4 is a really good carbon shoe. It has been fun, lively, and punchy, and it is absolutely a shoe worth taking to a marathon start line when chasing a PB. Just pay attention to the toe box and the thin heel collar before committing on race day.