Yes, the future of running is already here.
LightSpray™ revolutionizes performance running. By combining robotics and material innovation, this unique technology reduces a multi-step process to a single, three-minute step, with minimal waste. The result? On's lightest running shoe yet. The Cloudboom Strike LS weighs just 170g. No laces. No tongue. Just the essentials for speed and propulsion.
Behind the Technology: How LightSpray™ is Changing the Game
Yes, this robot pulverizes a stem. In just three minutes.
For decades, the sportswear industry has relied on a multi-step process to create footwear for athletes and enthusiasts. But LightSpray™ is changing that.
Designed for elite running, this robot fuses 1.5km of filament onto a high-performance running midsole. It forms a complete shoe upper in a single three-minute step.
The absence of glue or stitching reduces CO₂ emissions by 75% compared to other On running uppers. You've never seen shoes made this way before.
The shoe that wins the biggest marathons
With LightSpray™, On has created its lightest upper yet. Weighing just 30g, it marks a new chapter in the history of performance running.
The lack of laces reduces distractions. And the second-skin fit reduces chafing, allowing you to focus on the miles ahead, whether that's 26.2 miles or more.
By combining this revolutionary upper with a propulsive sole, we created the Cloudboom Strike LS. It features a carbon fiber Speedboard® plate between two layers of hyper-dense Helion™ HF foam for high energy return and optimal shock absorption.
Present on the catwalks of Boston, Paris, New York and Tokyo, she is making dazzling progress all over the world.
How does it work?
By eliminating unnecessary steps and textiles, LightSpray™ transforms raw materials into something extraordinary.
LightSpray™ technology enables glue-free bonding and is the subject of more than seven patents pending.
Any excess and unnecessary processes such as yarn and textile formation, conventional dyeing or increased water consumption are eliminated.
The result? Less waste and fewer parts to create On's fastest, lightest shoe yet.
