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.

*Data based on external validation by Vaayu.

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.

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 …

Discover The Cloudboom Strike LS

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.