Elegantive
How On LightSpray Technology Makes Shoes in 3 Minutes
AccessoriesBest Shoes

How On LightSpray Technology Makes Shoes in 3 Minutes

Published 2026-04-21

Discover how On LightSpray technology uses robotic arms to spray seamless running shoes in three minutes, reducing waste and carbon emissions.

Imagine a world where your high-performance gear isn’t stitched or glued, but literally sprayed into existence in the time it takes to brew a cup of coffee. At On Labs Zurich, the future of footwear has arrived, and it’s being spun by a robotic arm in just 180 seconds.

The 3-Minute Revolution: How On LightSpray Technology Makes Shoes in 3 Minutes

Robotic manufacturing nozzle applying fine fibers to create a seamless shoe upper.
The LightSpray process transforms footwear manufacturing from 200 manual steps into a single, three-minute robotic procedure.

The traditional way of making a sneaker involves over 200 manual steps—cutting, sewing, and gluing various pieces of fabric together. On LightSpray technology completely disrupts this heritage process. By utilizing an automated robotic arm, On has condensed the manufacturing timeline into a breathtaking 3-minute window. So, how does On LightSpray technology work for running shoes? It’s a precision-engineered "spraying" process where a single continuous filament is layered onto a shoe last, moving from a liquid state to a high-performance textile in seconds. This isn't just a gimmick; it’s a radical shift toward localized, rapid production that could change how you buy shoes forever.

Under the Hood: The Science of Thermoplastic Polymer Filaments

The magic lies in the thermoplastic polymer filament. During the robotic spray shoe upper process, a single 1.5-kilometer strand of this material is extruded and instantly bonded using thermal fusing technology. Because this method relies on heat rather than traditional adhesives, it enables glue-free bonding, creating a monofilament construction that is as strong as it is light. Through computational shoe design, engineers can program the robot to spray more density in areas requiring support and less in areas needing breathability. The result? A zero waste production cycle where every millimeter of material serves a performance purpose, eliminating the scrap typically left on the cutting room floor.

Performance First: The On Cloudmonster 3 Hyper Construction

For the runner, the On Cloudmonster 3 Hyper construction is a dream of physics. Despite its massive 45mm stack height, the shoe weighs in at a feather-light 190 grams (men’s 8.5). This places it firmly in the super trainer category, designed for those high-mileage days where you still want a responsive, snappy feel. In an On Cloudmonster 3 Hyper vs Cloudboom Strike LS comparison, the Monster offers more daily versatility and cushion, while both benefit from the performance advantages of On LightSpray running shoes: a distraction-free, second-skin sensation. The signature CloudTec cushioning pods underfoot work in tandem with the spray-on upper to provide a ride that is both ultra-plush and incredibly stable, thanks to the precision of the filament tension.

Sustainability and the Future of Manufacturing: Advantages of Seamless Running Shoe Uppers

Beyond the speed and weight, the sustainability benefits of On LightSpray technology are perhaps the most impressive. One of the primary advantages of seamless running shoe uppers is the drastic reduction in parts; the Cloudmonster 3 Hyper is assembled from just eight components. This simplified assembly leads to a 75% carbon footprint reduction compared to On's other high-performance models. By removing the need for toxic glues and complex overseas shipping of individual parts, On is moving closer to a circular manufacturing model. The automated process isn't just about robots—it's about creating a cleaner, more efficient way to produce the gear we love without compromising the planet.

Final Verdict: Is the Seamless Future Worth It?

Full lateral view of the finished On Cloudmonster 3 Hyper with LightSpray technology.
Set for a 2026 release, the Cloudmonster 3 Hyper represents the pinnacle of automated footwear innovation.

With a projected price point of $330 and a full consumer rollout set for 2026, On LightSpray technology is clearly a premium investment in the future of movement. The computational shoe design ensures that you aren't just wearing a shoe; you are wearing a piece of precision-tuned data. If you value a "weightless" feel and want to be on the bleeding edge of athletic innovation, this is the silhouette to watch.

The On LightSpray revolution proves that when performance engineering meets robotic precision, the result isn't just a better shoe—it’s a faster, greener way to run.

Ashley Morgan

Ashley Morgan

Fitness fashionista & activewear reviewer. From yoga studios to city streets, I find the perfect blend of performance and style.

More from

Accessories

ElegantiveElegantiveElegantiveElegantiveElegantiveElegantiveElegantiveElegantiveElegantiveElegantiveElegantiveElegantiveElegantiveElegantiveElegantiveElegantiveElegantiveElegantiveElegantiveElegantiveElegantiveElegantiveElegantiveElegantiveElegantiveElegantiveElegantiveElegantiveElegantiveElegantiveElegantiveElegantive