This Robot Is Making On’s Spray-On Marathon Sneaker, Its Fastest-Ever Distance Shoe

Why It Matters

LightSpray dramatically cuts manufacturing time and environmental impact, positioning On to meet growing demand for high‑performance, sustainably made footwear. The rollout signals a shift toward automated, on‑demand sneaker production across the industry.

Key Takeaways

• LightSpray robot creates shoe uppers in three minutes per pair.
• Process cuts ~200 assembly steps, reduces waste and CO₂ emissions.
• New Busan factory with 32 robots boosts production 30‑fold.
• Limited‑edition Cloudboom Strike and Cloudmonster 3 Hyper now on pop‑up.
• On plans additional robot farms worldwide to widen sneaker access.

Pulse Analysis

On's LightSpray technology marks a turning point in athletic footwear manufacturing. By replacing a labor‑intensive 200‑step assembly line with a three‑minute robotic spray, the Swiss brand delivers an ultra‑light, carbon‑plated upper that has already powered marathon champion Hellen Obiri to victory. The process not only accelerates production but also minimizes material waste and cuts carbon emissions, aligning with the broader sustainability agenda that consumers increasingly demand from premium sports brands.

The commercial rollout in London coincides with the opening of a dedicated LightSpray facility in Busan, South Korea. Housing 32 robots, the plant can increase output by roughly 30 times, shifting the product from elite‑only limited drops to broader consumer availability. Partnerships with PlayLabs, Healf and on‑site pop‑up events create experiential touchpoints that deepen brand engagement ahead of the London Marathon, while the limited‑edition Cloudboom Strike and Cloudmonster 3 Hyper serve as high‑visibility proof points for the technology's performance credentials.

Industry analysts view On's robot‑farm model as a blueprint for the next wave of footwear production. Automation promises cost efficiencies, faster time‑to‑market, and the ability to customize midsoles and uppers at scale. As competitors explore 3‑D printing and AI‑driven design, On's early investment in LightSpray could give it a durable edge, especially if the company expands robot farms globally and integrates the process into a wider product portfolio.