On’s 100-Gram Shoe Sweeps Top Two at World Road Championships

The red clay track hums with the vibration of spikes biting into the surface. Underfoot, the foam is barely there, a sliver of cushioning that feels more like a whisper than a block. The shoe is light, so light it seems to dissolve into the runner’s stride. It is the On LightSpray Cloudboom Volt Pro, and it just rewrote the script for short-distance racing.

While the world watched for Nike’s Alphafly 4 to dominate, a quieter contender stole the show. The top two finishers in the men’s mile crossed the line wearing this new model. Robert Farken of Germany took gold in 3:51.80, with Yaren Nuguse of America close behind at 3:52.33. Both were laced up in the same ultra-lightweight footwear, a stark contrast to the thicker, more cushioned shoes typically favored by elite athletes.

Robot-Sprayed Upper Meets Race Pace

The engineering is as unusual as the result. The shoe weighs just over 100 grams, a number that defies the usual bulk of competitive running gear. The upper is seamless and glueless, created by a robot that sprays the material in three minutes. This Lightspray technology eliminates the traditional stitching and adhesives, reducing weight and friction. The sole unit, despite its minimal foam, features a wide base for stability. It is a design that prioritizes speed and efficiency over the plush feel of other racing shoes.

The development timeline was equally aggressive. On built this model in eight months, a fraction of the typical two-year process for major releases. To allow their athletes to wear it at the World Road Championships, the brand had to release it to the public. They did so quietly last week, placing the shoes in select flagship stores. This strategic move ensured the shoe was legal for competition while generating buzz among the running community.

A One-Two Sweep in the Mile

The dominance of the shoe extended beyond the men’s race. In the women’s mile, On secured a one-two finish. Agathe Guillemot of France and Freweyni Hailu of Ethiopia took the top spots. However, they wore the Cloudboom Strike 2 and Lightspray Cloudboom Strike 2, respectively. These models are slightly different from the Volt Pro worn by the men, but they carry the same brand identity and performance pedigree.

The broader context of the championships highlighted the competitive landscape. In the half-marathon, the longest distance at the event, Kenyan Agnes Jebet Ngetich broke the women’s world record with a time of 1:05:15. She wore the Adidas Adios Pro Evo 2. Men’s winner Andreas Almgren of Sweden set a European record of 58:06 in the Nike Alphafly 4. These results underscore the high level of competition, but the mile races remain the stage where the new On shoe made its most impactful statement.

Momentum Builds Beyond the Track

The success at the World Road Championships is not an isolated incident. It is part of a larger strategy for On to expand its presence in elite sports. Last week, the brand announced a major victory over Nike by signing Kylian Mbappe to launch its soccer division. This move signals a broader ambition to compete with traditional giants in multiple disciplines. The buzz around the LightSpray technology is fueling this momentum, attracting attention from runners and fans alike.

As reported by wwd.com, the shoe’s debut has created a significant stir in the running world. The combination of lightweight design, innovative manufacturing, and elite performance has positioned On as a serious contender in the market. The race is no longer just about who has the fastest athlete; it is about who has the most innovative gear. The LightSpray Cloudboom Volt Pro is a clear indication that the future of running shoes is lighter, faster, and more technologically advanced.