When Sebastian Sawe crossed the finish line of the 2026 London Marathon in 1 hour, 59 minutes, and 30 seconds, he didn’t just shatter the world record—he became the first human to run 26.2 miles under two hours in an officially sanctioned race. The shoes on his feet, the Adidas Adizero Adios Pro Evo 3, weighed just 98 grams each and carried a $540 price tag. They were the difference between history and another near-miss.

The Shoe That Changed the Marathon

The Adizero Adios Pro Evo 3 isn’t just footwear; it’s a precision instrument. Adidas designed it with one purpose: to help elite runners break barriers. The shoe’s construction reads like a blueprint for speed:

• Upper: A sock-like mesh so thin it eliminates traditional eyelets, shaving grams while maintaining structure.
• Midsole: Two layers of Adidas’ proprietary LightStrike foam, which the company claims returns 80% of the energy from each stride. The foam is molded to cradle the foot, reducing wasted motion.
• Carbon Plate: A single-piece, inverted horseshoe-shaped plate that World Athletics rules mandate must span the entire length of the shoe. This design stores and releases energy with each step, effectively propelling the runner forward.
• Outsole: A wafer-thin layer of Continental rubber, strategically placed only where the foot strikes the ground. The rest of the shoe’s underside is bare foam, saving weight at the cost of durability.

“These aren’t shoes you train in,” said an Adidas spokesperson in materials released after Sawe’s record. “They’re built for one race, one moment.”

How the Tech Works

The science behind the Adizero Adios Pro Evo 3 is rooted in biomechanics. Every time a runner’s foot hits the ground, energy is lost to impact. Traditional shoes absorb some of that energy, but the Adios Pro Evo 3’s carbon plate and LightStrike foam work in tandem to redirect it. The plate acts like a spring, while the foam compresses and decompresses, returning energy to the runner’s next stride.

World Athletics regulations cap the shoe’s stack height—the distance from the ground to the top of the midsole—at 40 millimeters. The Adios Pro Evo 3 sits at the limit, maximizing the foam’s energy return without violating the rules. For context, the average running shoe has a stack height of 20-30mm.

The Race That Made History

Sawe’s record wasn’t just about the shoes, but they were a critical factor. The 31-year-old Kenyan, competing in only his fourth career marathon, led a historic race in London. Not only did he break the two-hour barrier, but the second- and third-place finishers—Ethiopia’s Yomif Kejelcha (1:59:41) and Uganda’s Jacob Kiplimo (2:00:28)—also ran times that would have set the previous world record. The previous mark, 2:00:35, was set by Sawe’s compatriot Kelvin Kiptum in Chicago in 2023.

Kiptum’s record had stood for less than three years before Sawe eclipsed it. Tragically, Kiptum died in a car accident in February 2024, making Sawe’s achievement all the more poignant. The emotional weight of the moment wasn’t lost on Sawe, who told reporters after the race, “I thought about Kelvin today. This record is for him.”

The Controversy Over Carbon-Plated Shoes

Sawe’s record reignites the debate over carbon-plated shoes in distance running. The technology first gained widespread attention in 2016 when Nike’s Breaking2 project saw Eliud Kipchoge run 2:00:25 in a controlled, non-record-eligible event. Kipchoge later became the first to break two hours in an official race (1:59:40 in Vienna in 2019), but that time wasn’t ratified due to the use of rotating pacers and other non-standard conditions.

Critics argue that carbon-plated shoes give athletes an unfair advantage, turning races into a competition of who has the best technology rather than the best training. Proponents counter that the shoes are available to any elite runner and that the real advantage lies in how athletes use them. World Athletics has attempted to regulate the technology, capping stack height and mandating that carbon plates be a single piece, but the debate is far from settled.

What’s Next for Marathon Running?

Sawe’s record is likely to stand for a while, but the technology behind it will continue to evolve. Adidas has already hinted at future iterations of the Adizero line, and competitors like Nike, Puma, and New Balance are undoubtedly working on their own advancements. The next frontier may involve even lighter materials, improved energy return, or shoes tailored to individual runners’ biomechanics.

For now, though, the Adizero Adios Pro Evo 3 will be remembered as the shoe that helped Sawe make history. At 98 grams and $540 a pair, it’s a small investment for a giant leap in marathon running.

Key Takeaways

• Record-Breaking Performance: Sebastian Sawe became the first athlete to run a sub-two-hour marathon in an official race, finishing in 1:59:30 at the 2026 London Marathon.
• Shoe Specs: The Adidas Adizero Adios Pro Evo 3 weighs 98 grams per shoe and features a carbon plate, LightStrike foam, and a 40mm stack height.
• Energy Return: Adidas claims the shoe returns 80% of the energy from each stride, thanks to its proprietary foam and carbon plate design.
• Durability Trade-Off: The shoes are designed for a single race, with minimal rubber on the outsole to save weight.
• Controversy Continues: Carbon-plated shoes remain a contentious topic in distance running, with debates over fairness and regulation ongoing.

FAQ

How much do the Adidas Adizero Adios Pro Evo 3 shoes cost?

The shoes retail for approximately $540 per pair.

Why are carbon-plated shoes controversial?

Critics argue that they provide an unfair advantage by artificially enhancing performance, while supporters say they level the playing field by making the technology available to all elite runners.

What was the previous marathon world record?

The previous record was 2:00:35, set by Kelvin Kiptum in Chicago in 2023. Kiptum died in a car accident in February 2024.

Will Sawe’s record be broken soon?

Given the rapid advancement of shoe technology and training methods, it’s possible—but Sawe’s record is the first of its kind, and future attempts will face a higher benchmark.

What’s Next?

Sawe is expected to compete in the 2026 World Athletics Championships in Tokyo this August, where he’ll aim to defend his marathon title. In the meantime, Adidas is likely to release a limited edition of the Adizero Adios Pro Evo 3, with availability and pricing to be announced in the coming weeks.

For updates on Sawe’s training and future races, follow World Athletics or Adidas’ official channels.

What do you believe about the role of technology in marathon running? Should carbon-plated shoes be regulated more strictly, or is this the future of the sport? Share your thoughts in the comments below.