The Cloudboom Strike LS

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Cloudboom Strike LS

Breakthrough running technology—lighter, faster, seamless.

Learn more about the On Cloudboom Strike LS - the first racing shoe produced by a robot. The first moment to get your hands on a pair is already fully booked.

Yet, do not worry, we have the next opportunity to trial, test and buy the shoes coming up in early July.

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What makes it the future of running?

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? On’s lightest racing shoe yet. The Cloudboom Strike LS weighs just 170g. No laces. No tongue. Only the essentials for speed and propulsion – while reducing CO₂ emissions by 75%.

The revolutionary upper is paired with a propulsive bottom unit. Featuring a carbon-fiber Speedboard® between two layers of Helion™ HF hyper foam for high energy return and impact absorption.

See how it works

What are the key features?

The robot fuses 1.5km of filament onto a high-performance racing midsole. It forms a complete shoe upper in a single, three-minute step.

With LightSpray™, On created its lightest upper yet, weighing in at just 30g.

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.

The revolutionary upper is then paired with a propulsive bottom unit. Featuring a carbon-fiber Speedboard® between two layers of Helion™ HF hyper foam for high energy return and impact absorption.

How are CO2 emissions reduced?

Through glueless bonding the robot cuts out unneccessary excess and processes, like yarn and textile formation, conventional coloration, or increased water consumption.

The result, less waste, fewer parts and a reduction of CO2 emissions by 75%.