Alright folks, I’ve got my hands on the tech specs of what might be the most insane running shoe I’ve ever seen in my 15+ years as a running gear obsessive. The adizero adios pro evo 3 is Adidas’ new flagship marathon racer, and honestly, my jaw dropped when I first saw the numbers. Let’s dive deep into what makes this shoe a complete game-changer.
The Headline Stat: That Mind-Blowing Weight
Let’s cut straight to the chase – this shoe weighs just 138 grams (4.87 oz) in a UK size 8.5/US 9. I’m not kidding. That’s literally HALF the weight of most elite carbon racers on the market. The Nike Alphafly 3? Around 230g. Adidas’ own Adios Pro 3? About 223g. This is a completely different league of lightness.
I’ve been testing running shoes for over a decade, and I can’t remember anything remotely this light being designed for marathon distances. We’re talking about a shoe that weighs less than many track spikes!
Price Point: The Most Expensive Running Shoe Ever?
Brace yourselves – the adizero adios pro evo 3 costs a whopping $500/£500/€500. Yeah, you read that right. That’s basically double what you’d pay for other super shoes. Is it worth it? Well, that depends on how much you value those marginal gains and how deep your pockets are. But Adidas is clearly positioning this as the absolute pinnacle of marathon racing technology, price be damned.
Construction & Materials: How’d They Make It So Light?
Upper Construction
The upper is where a ton of the weight savings come from. Adidas has used what they’re calling CELERMESH – an incredibly minimal, almost transparent mesh that’s reinforced only where absolutely necessary. There’s practically zero padding anywhere. The heel counter? Barely there. Tongue? Minimal. This is function over comfort in its purest form.
I’ve seen some early photos, and you can literally see through parts of this upper. It reminds me of those super-minimal track spikes, but engineered for 26.2 miles. Bold move, Adidas.
Midsole Technology: Redesigned LIGHTSTRIKE PRO
The midsole uses a completely new version of LIGHTSTRIKE PRO foam that’s been engineered specifically for this model. It’s noticeably less dense than previous versions, which contributes significantly to the weight reduction.
But here’s where it gets really interesting – Adidas has managed to maintain (or possibly even improve) the energy return despite using less material. My sources suggest the foam has been reformulated at the molecular level to provide maximum responsiveness while using the absolute minimum amount of material.
Carbon Plate System: ENERGYRODS 2.0
The shoe features Adidas’ ENERGYRODS 2.0 system – their answer to the carbon plate tech that’s become standard in super shoes. But unlike a single plate, these rod-like structures mimic the metatarsal bones in your foot. The rods in the Evo 3 have been completely redesigned to be significantly lighter while maintaining rigidity.
What’s particularly interesting is how they’ve managed to tune the stiffness. The rods provide serious propulsion at toe-off but apparently allow for more natural foot movement through the gait cycle. This is potentially a big advantage for maintaining efficiency over the full marathon distance.
Outsole: Minimal Continental Rubber
The outsole uses Continental rubber, but in the most minimal application I’ve ever seen. There are just tiny sections of rubber placed only at the highest-wear areas. The rest? Exposed foam. This obviously saves weight but raises some serious questions about durability.
Let’s be real – this is NOT a training shoe. Adidas is explicitly marketing this as a race-day-only proposition, suggesting you might get 1-2 marathons out of them before performance degrades. That’s a tough pill to swallow at $500, but it’s the price of cutting-edge performance.
Stack Height & Drop: Still Maximal Despite Weight
Despite the ultra-lightweight construction, Adidas hasn’t compromised on cushioning. The stack height is reported to be 39.5mm in the heel and 33.5mm in the forefoot, giving a 6mm drop. That’s right at the legal limit for World Athletics competition, meaning this shoe provides maximum cushioning while still being competition-legal.
For comparison, that’s similar to the stack height of much heavier super shoes like the Nike Alphafly. Achieving this level of cushioning at such a low weight is genuinely impressive engineering.
Fit & Sizing: Racing Fit
From what I’ve gathered, the fit is extremely snug – even by racing shoe standards. Adidas recommends going up half a size from your normal adizero sizing. The toe box is particularly narrow, which might be an issue for wider-footed runners.
The heel hold is reportedly excellent despite the minimal construction, but there’s virtually zero padding anywhere. This is a shoe designed for pure speed, not comfort.
Limited Availability: Extremely Hard to Get
Here’s another kicker – Adidas is producing these in extremely limited quantities. They’re treating this almost like a concept car that actually goes into limited production. The shoe will be available through a raffle system on the Adidas app and website, with only a few thousand pairs available worldwide.
The first release is scheduled for September 20, 2023, just ahead of the Berlin Marathon where several elite Adidas athletes will be debuting them in competition.
My Take: Is This the Future or Just a Marketing Stunt?
Look, I’ve been around the running shoe block enough times to be both impressed and skeptical. Creating a marathon shoe that weighs under 140g is a genuine technical achievement. The engineering that went into this is undeniably impressive.
But there are some big questions. The durability concerns are real – are runners really going to drop $500 on shoes they might only use once or twice? And while elite marathoners might accept the extreme minimalism in exchange for those weight savings, will the shoe provide enough protection for mere mortals running at slower paces?
My gut feeling is that this is partly a technological showcase for Adidas – a way to demonstrate their engineering capabilities while creating a halo product that generates buzz. The technologies developed for the Evo 3 will likely trickle down to more accessible models in the future.
Technical Specifications Summary
- Weight: 138g (4.87oz) for UK 8.5/US 9
- Stack Height: 39.5mm heel / 33.5mm forefoot
- Drop: 6mm
- Upper: CELERMESH ultralight construction
- Midsole: Reformulated LIGHTSTRIKE PRO foam
- Propulsion System: ENERGYRODS 2.0
- Outsole: Minimal Continental rubber placement
- Price: $500/£500/€500
- Release Date: September 20, 2023
- Availability: Extremely limited through raffle system
Whether you view the adizero adios pro evo 3 as the future of marathon racing or an overpriced marketing exercise, one thing’s for sure – Adidas has thrown down the gauntlet to Nike, Asics, and other brands in the super shoe arms race. And as a certified shoe geek, I can’t help but be fascinated by where this technology might lead us next.
What do you think? Would you drop $500 on race-day-only shoes if they might shave a minute or two off your marathon time? Let me know in the comments!