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.