This is LightSpray™
Revolutionary technology. Lighter than humanly possible.
Yes, the future of running is here.
LightSpray™ is revolutionizing performance running. By uniting robotics and material innovation, this unique technology cuts a multi-part process into a three-minute, minimal-waste step. The result? Our lightest racing shoe yet. The Cloudboom Strike LS weighs just 170g. No laces. No tongue. Only the essentials for speed and propulsion. Discover the Cloudboom Strike LS
A new colorway drops in select stores on September 4 – but be quick. Limited availability.
Find your store below.
On Flagship Store Zurich Limmatquai | Drops Sep. 26 Limmatquai 28, 8001 Zürich
Retail Partners in Europe
Top4Running – DE ALL4RUNNING – NED Lopllabet – NORDICS Handshake – BENE Ready2Run – ITA Frankfurter Laufshop – GER I-Run – FRA Quartorze – FRA Why Run – ITA Distance – FRA Pro Direct – UK Achilles Heel – UK Sportsshoes – UK DMS Mono Brand Store – UAE
Retail Partners in the USA
USA
A Runner's Mind Fit2Run Fleet Feet Chicago Fleet Feet Houston Fleet Feet Columbus Circle Mill City Naperville Running Co Renegade Running The Exchange The Loop Running Supply
Retail Partners in Canada
Forerunners Black Toe Running Boutique Endurance Le Coureur Frontrunners Run As You Are (RAYA) Boutique Courir Brainsport Strides Running Store Le Coureur Nordique
Retail Partners in Latin America
Latin America Run 24 Metta Mexico DMS Chile DMS
Brazil Keep Running PROCORRER Velocitá Running Land
Retail Partners in the Asia
Koike Sports – JPN Alpen – JPN Artsports – JPN Victoria – JPN Up There Athletic – AUS Pace Athletic – AUS Frontrunner Colombo Street – AUS The Running Company – AUS Bangkok DMS Mono store – THA Goodrunner – KOR Fleetrunner – KOR
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Cloudboom Strike LS
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Behind the tech
How LightSpray™ is changing the game
Yes, this robot sprays an upper. In just three minutes.
For decades, the sportswear industry has relied on a multi-step process to create shoes for athletes and fans. But LightSpray™ changes the game. Designed for elite-level running, our robot fuses 1.5km of filament onto a high-performance racing midsole. It forms a complete shoe upper in a single, three-minute step. No glues or seams means a 75% reduction in CO₂ emissions*, compared with our other racing uppers. You’ve never seen shoes made like this before.
With LightSpray™, we created our lightest upper yet. Weighing in at just 30g, it marks a new chapter for performance running. No laces mean fewer distractions. And the second-skin fit reduces chafing, so you can focus on the miles ahead – whether it’s 26.2 or more. By pairing this revolutionary upper with a propulsive bottom unit, we created the Cloudboom Strike LS. Featuring a carbon-fiber Speedboard® between two layers of Helion™ HF hyper foam for high energy return and impact absorption. Seen on podiums in Boston, Paris, New York, and Tokyo, it’s making strides around the world.
How it works
Removing excess steps and textiles, LightSpray™ transforms raw materials into something extraordinary.
LightSpray™ technology allows for glueless bonding and involves more than seven pending patents.
We cut out all unnecessary excess and processes. Like yarn and textile formation, conventional coloration, or increased water consumption.
The result? Less waste, fewer parts…
To make our fastest, lightest shoe.
History, made.
Our latest wins in LightSpray™
Yes, it won Tokyo in 2025.
Athletes around the world are putting the Cloudboom Strike LS through its paces. And the results speak for themselves. When Sutume Asefa Kebede first slipped into LightSpray™ earlier this year, she reclaimed her title in Tokyo – one of the most prestigious 26.2-mile races in the world.
Since then, more athletes have made strides in LightSpray™. Hellen Obiri set a new marathon PB, finishing Boston in a lightning fast 2:17:41. And last year, she won Boston 2024 and claimed podiums in New York and Paris. Long-distance triathlete Kristian Blummenfelt claimed the European title, while Samuel Fitwi broke the German marathon record in Valencia, running 2:04:56. And Dominic Lobalu clocked 26:54 in the Valencia 10K, breaking the Swiss record in the Cloudboom Strike LS. We’re proud of our athletes, and this is just the beginning …
When you trust the shoes, you have that mentality ... I’m going to run fast.
After wearing them in my training runs, I found that the shoe provided not only great performance in the hardest workouts but also perfect support and stability.
The technology makes it really unique and impressive. All runners are interested and intrigued by this shoe. You’re bound to want to try it out to test your abilities.
Running in the Cloudboom Strike LS feels amazing. The shoe is super comfortable and bouncy. It’s so fast.
Yes you can own it.
The Cloudboom Strike LS is now available in limited quantities at select stores. Still craving more? We’re taking On Labs around the world – a space where you can discover our latest technologies in action, watch the full, three-minute robot show live, and try on the shoe. Click below to learn more about LightSpray™, where you can buy the shoe or see the robot live.