Adidas Adizero Adios Pro 2 vs Nike Vaporfly Next% 2: Which Racing Shoe Deserves Your Marathon?

Introduction

Few matchups in running divide runners quite like the Adidas Adizero Adios Pro 2 versus the Nike Vaporfly Next% 2. Both sit at the very top of the carbon racing shoe market, both are built around enormous foam stacks, and both have serious race-day credentials. This comparison looks at how each shoe is built, how they fit, how they actually feel when you push the pace, and which one makes more sense for your next marathon.

Design and Construction

The Adizero Adios Pro 2 uses a Celermesh 2.0 upper, a breathable and airy material that still creates a tight lockdown. The midsole is complex: a small carbon plate at the heel for stability (it does not run the full length of the shoe), a full layer of Lightstrike Pro foam, five carbon-infused energy rods aligned with the metatarsals that replicate the feel of a carbon plate in a different way, and a second, more sculpted layer of Lightstrike Pro on top. Adidas has carved out a large chunk of the midsole foam to save weight, then widened the heel base slightly to counter any resulting stability issue. The outsole uses a thin layer of rubber with harder, more durable Continental rubber at the toe-off zone where grip matters most.

The Vaporfly Next% 2 carries over the formula most runners already know: ZoomX foam in the midsole with a full-length carbon plate in the middle to stabilize the foam and add propulsion. The main change from the original Next% is the knitted open-fit upper, which replaces the Vaporweave material of the first version. The outsole has two rubber strips at the rear and a fuller rubber covering on the forefoot where grip matters as you drive through. Grip is good in all road conditions on both shoes, but neither belongs anywhere near a trail.

Key Specs and Price

The Adizero Adios Pro 2 has a claimed 39.5mm heel stack and 31mm forefoot stack for an 8mm drop, matching the Vaporfly’s 8mm drop. The Nike is the lighter shoe: a UK 9 weighs 206g (7.3 oz) versus 245 to 246g (8.6 oz) for a UK 10 Adios Pro 2; Adidas lists 225g for a UK 8.5.

On price, the Adios Pro 2 sits at £180 in the UK, $220 in the US, or €220. The Vaporfly Next% 2 launched at £210 in several colorways but the UK price is now £225 (or $250), making it noticeably more expensive. That price gap is one place where the Adidas can claw back real ground.

Fit and Sizing

Both shoes run true to size, and neither tester would size up or down. Early on, both experienced some heel rub in the Vaporfly Next% 2, which was solved entirely by lacing more carefully and using a heel lock, after which longer runs including half marathons were rub-free. Both shoes reward close attention to how you lace them down on the first few wearings, and both may need re-lacing before a race after the walk to the start line.

The Adios Pro 2 has a slightly more traditional heel collar with a little more padding, adding comfort and heel protection. The Vaporfly’s foam sits a bit lower with a looser edge at the top of the collar, which can contribute to a lower Achilles rubbing if the lockdown is not dialed in. One tester also found the original Adios Pro hugged the foot slightly more comfortably, with fewer tight spots and a tongue that wraps the top of the foot better, but the Pro 2’s upper was still comfortable once adjusted.

The Run Test: Nike Vaporfly Next% 2

The Vaporfly Next% 2 is a proven quantity: multiple PBs in the exact shoe, including a 15-minute 5K and a 70-minute half marathon, plus marathon racing in earlier versions. It is an exceptionally reliable race shoe with punchy response, a firmer and more planted feel with better ground contact, and a wider base that gives runners a stable platform to push off. It is also highly versatile, genuinely good across 5K, 10K, half marathon, and marathon. Underfoot it feels very similar to the original Vaporfly, so runners who loved that shoe will feel at home.

The Run Test: Adidas Adizero Adios Pro 2

The Adios Pro 2 is slightly less versatile than the Nike and is tilted more toward longer distances. It is a very comfortable, cushioned, giving shoe that cruises beautifully at half marathon and marathon pace. On tired legs it gives back a lot, with one runner noting it made a very slow marathon on a seven-marathon-in-seven-days block feel far more manageable and even helped them run faster. In a hilly, pavement-hopping half marathon it proved fast and nimble uphill with plenty of protection and bounce coming down.

The trade-off is stability. The shoe has a slight rolling motion side to side, tips you laterally a little, and at slow, easy paces can produce the odd turned-ankle moment. It performs best when you are pushing hard and running with good form, when it kicks into a different gear. For raw pace, the Vaporfly still has the edge, but as a smooth, protective marathon shoe the Adios Pro 2 is genuinely close.

Stability and Handling at Pace

The stability difference between the two is the clearest differentiator in this comparison. The Vaporfly’s wider base and firmer platform inspire confidence even when easing off the pace, while the Adios Pro 2 rewards commitment: at race effort and with good form, it feels stable and fast, but at slow speeds the side-to-side roll becomes noticeable. Runners who prioritize a planted, predictable platform will lean Nike; runners who race long and push the pace throughout will get everything they need from the Adidas.

Verdict: Which Shoe Should You Race?

For a big goal race, the Vaporfly Next% 2 still edges it. It is reliable, punchy, has that trusted platform, and is equally strong across race distances from 5K to marathon. The sea of these shoes at any start line says a lot, and it is the easiest recommendation to make to almost anyone.

The Adios Pro 2, however, is not far behind at marathon distance, and the price gap is meaningful: £180 versus £225 at UK RRP. If you are focused on a big marathon and want a more budget-friendly super shoe, the Adios Pro 2 will give you essentially the same performance where it counts.

Conclusion

The Nike Vaporfly Next% 2 remains the safest pick for race day across all distances, but the Adidas Adizero Adios Pro 2 is a superb marathon-focused alternative that costs notably less. If versatility and proven pace matter most, go Vaporfly. If your season revolves around one long race and you want to save money, the Adios Pro 2 delivers.