On Cloudboom Max – Marathon Super Trainer for Every Pace
On Cloudboom Max is On’s marathon shoe, built for runners finishing in four to six hours. It brings super-shoe technology to recreational marathoners, not just front-of-pack elites.
What Makes On Cloudboom Max Different
- Dual-layer Helionâ„¢ HF foam pairs a softer PEBA top with a firmer TPEE base
- Glass fiber Speedboard® plate adds propulsion without sacrificing stability
- Wide, anatomic toe box accommodates wider feet with no heel slippage
- High sidewalls improve cornering and keep the foot planted through turns
- Lightweight engineered mesh upper delivers a secure, breathable, dialed-in fit
- Firm, stiff ride feels most efficient at slower, steady marathon paces
- Versatile enough to handle training runs, recovery days, and race day itself
Built for the Marathon Middle and Back of the Pack
Most carbon-plated super shoes are tuned for elite paces under three hours. Cloudboom Max targets the much larger group running four to six hours, prioritizing stability and wide-foot comfort over the bounciest possible energy return. It won’t feel as lively at faster speeds, and some testers note it runs heavier than competing super trainers.
Fit & Ride Notes
The wide, anatomic toe box suits runners who want extra room, with a secure heel lockdown. The ride feels smoothest at easy-to-moderate paces rather than uptempo efforts.
Related from On’s Racing Collection
Want a lighter, plate-free long-run option instead? The Cloudmonster 3 Hyper offers a softer, more free-flowing ride for high-mileage training. For front-of-pack race day speed, On’s Cloudboom Strike and Echo models are built specifically for sub-3-hour marathoners.
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