On Running introduced LightSpray technology, which uses robotic precision to apply adhesive and layer materials in running shoes. The Swiss brand claims this manufacturing method reduces weight while maintaining structural integrity. Men's Health tested the resulting Cloudmonster 3 Hyper shoes in real-world conditions.
LightSpray differs from traditional shoe construction. Instead of manually gluing and stitching layers, robots apply adhesive with pinpoint accuracy, eliminating excess material that adds weight without function. On positions this technology as moving beyond marathon-specific gimmicks into mainstream performance running.
The Cloudmonster 3 Hyper features On's CloudTec cushioning paired with the LightSpray construction method. The approach targets runners seeking lightweight responsiveness without sacrificing comfort over distance. Testing revealed the shoes maintained structural support during varied workouts, from tempo runs to recovery jogs.
Weight savings matter for distance runners. Every 100 grams of shoe weight reduction translates to approximately 1 percent improvement in running economy, according to biomechanics research. LightSpray achieves weight reduction through intelligent material placement rather than cutting cushioning.
The practical question centers on durability and consistency. Robotic application theoretically produces more uniform shoes than manual construction, potentially reducing manufacturing defects. Testers found the Cloudmonster 3 Hypers responsive on pavement and maintained their feel across multiple runs.
On's investment in robotic manufacturing signals a shift in running shoe production. While premium pricing accompanies advanced construction methods, the technology addresses legitimate performance variables. For runners targeting specific race goals or seeking marginal gains, LightSpray shoes offer quantifiable advantages.
The testing suggests LightSpray technology delivers on its promise for non-elite runners. The shoes perform as everyday trainers while maintaining the weight savings that benefit competitive running. Whether the technology justifies the cost depends on