Swiss Robot Revolution: On's Single-Robot Shoe Production Breakthrough

One robot. Three minutes. Zero seams. On, the Zurich-based running shoe giant, has just obliterated the traditional manufacturing playbook. In a staggering display of efficiency, the company's new production site in Zurich demonstrates a capability that borders on science fiction: a single robotic unit now performs the work that typically requires 300 manual laborers. This is not merely an incremental update; it is a seismic shift in industrial capability.

Caspar Coppetti, On's co-founder, delivered the statistic that is sending shockwaves through the industry: "Around 300 people normally work on a conventional shoe." Today, that army of workers is replaced by a solitary, relentless machine. The implications are profound. While competitors grapple with complex supply chains and labor logistics, On is proving that the future of footwear belongs to automation. The speed is equally relentless—a finished shoe emerges from the void in just three minutes, a pace that conventional assembly lines simply cannot match. This bold move signals that Switzerland is not just designing the future of sport; it is manufacturing it.

The technology driving this disruption is called Lightspray, and it represents a radical departure from centuries of shoemaking tradition. Developed in close collaboration with the Swiss industrial titan ABB, the process involves a robot spraying an extremely thin, robust plastic thread in a precise spiral around a shoe last. This is not assembly; it is creation in its purest form. The upper of the shoe is generated in a single, continuous operation, fusing directly onto the sole without a single drop of glue or a single stitch.

This seamless construction means the shoe fits like a second skin, a wafer-thin layer that adapts instantly to the athlete's foot. By eliminating the need for laces and structural seams, On has engineered a product that defies the limitations of material science. The precision required for this operation is absolute, showcasing the might of Swiss engineering. While other brands are stitching together panels, On is spraying molten performance directly into reality, creating a product that looks and behaves like nothing else on the market.

The revolution isn't just about speed; it is about survival. On's new process slashes CO2 emissions by a staggering 75% compared to conventional manufacturing methods. In an industry often criticized for its environmental footprint, this is a game-changing metric. By stripping away extraneous materials and eliminating complex assembly steps, the Lightspray process uses significantly fewer distinct materials, streamlining the path to recycling.

The result of this minimalist engineering is a competition shoe that weighs a mere 170 grams. This featherweight design has already seen action on the world's biggest stage, with On athletes donning the futuristic footwear at the 2024 Olympic Games in Paris. The shoe's debut in a pop-up laboratory in central Paris served as a statement of intent: high performance and high sustainability are no longer mutually exclusive. On is proving that you can strip away the waste without sacrificing the win.