When On Running first disrupted the footwear space, it was CloudTec® that made people stop and look twice. Performance tech, yes—but delivered in a way that felt genuinely different. With the Cloudmonster 3, the Swiss innovators continue to refine their most maximal silhouette, leaning further into comfort without losing the punch that made the line what it is.

Up top, the engineered mesh keeps things breathable and uncomplicated. It’s secure through the midfoot, forgiving through the forefoot, and finished with subtle overlays and pared-back branding. 

Underfoot, the oversized CloudTec® elements remain the hero. They compress deeply on landing and roll you forward with a smooth, almost effortless transition. Helion™ superfoam has been fine-tuned for a more balanced feel—soft enough to take the edge off longer miles, yet lively enough when the pace naturally lifts. An updated Speedboard® sits through the midsole, adding structure and snap without making the ride feel rigid.

• Engineered knit mesh upper
• Lace-up fastening
• Rocker geometry
• Helion™ foam midsole
• Triple-layer CloudTec® cushioning 
• Nylon Speedboard®
• Compressed rubber outsole
• Heel: 36mm, Drop: 6mm
• Weight: 285g (US M10)
• SKU: 3MG10051200