~700 km
Expected lifespan, based on hand-researched wear data for this model.

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Feedback from both professional and user reviews indicates strong build quality, with runners logging 300+ miles and reporting minimal wear. The outsole grip is reliable, and the upper remains intact over time. No major durability concerns are raised in expert or user feedback.
The On Cloudmonster 2 is widely regarded by experts and users as a max-cushioned daily trainer with a firm yet protective ride, making it highly suitable for everyday training and base building. Its cushioning and rocker geometry provide comfort and support for long runs, though some users find the fit a bit voluminous for extended efforts. The shoe's moderate responsiveness and stability allow for some tempo work, but its weight and lack of aggressive propulsion limit its effectiveness for sustained faster paces or racing compared to dedicated tempo or race shoes. While it can be used for marathons if a super shoe is not available, it is not the top choice for competitive racing. The outsole and design are not intended for trail use, offering limited traction and protection off-road. For recovery runs, the cushioning is protective but firmer than some plush competitors, making it good but not ideal for those seeking maximum softness.
Ideal for Best suited for intermediate to experienced runners who prioritize comfort, stability, and durability in a daily trainer. Ideal for those logging high weekly mileage, training for half or full marathons at moderate paces, or seeking a reliable shoe for recovery and easy runs. Runners with wider feet or those who value a secure, roomy fit will especially appreciate its design.
The Cloudmonster 2 fits true to size and is more accommodating in the toebox than previous On models. The heel and midfoot provide a secure lockdown without excessive pressure. The shoe is designed for neutral runners and offers a smooth, slightly rockered ride with maximal cushioning. The Speedboard adds some stiffness for propulsion but maintains flexibility at the toes, supporting natural foot movement. No stability or motion control features are present, making it best for neutral gaits. The upper is lightweight and breathable, suitable for long runs, daily training, and all-day wear.
Sizing: True to size according to multiple expert reviews and fitting guides. No consistent recommendations to size up or down compared to other On models or mainstream running shoes.
Daily Trainer shoes in NORMA's database last between 320 and 800 km across 694 models. At 700 km, the On Cloudmonster 2 sits in the upper half of that range.
The On Cloudmonster 2 delivers a stable, well-cushioned ride ideal for daily training and long runs, blending impact protection with a secure fit. While it excels in comfort and durability, its firmer feel and heavier build make it less suited for speedwork or racing. Runners looking for a dependable, high-mileage trainer with a roomy fit will find it a strong contender.
Full specs, fit notes, and reviews on the On Cloudmonster 2 wiki page.
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The On Cloudmonster 2 lasts about 700 km, based on hand-researched wear data for this model. Your own mileage shifts with body weight, running surface, and how you use the shoe.
Start checking for wear around 420 km (60% of its lifespan). By 560 km the foam and outsole are usually noticeably degraded, and most runners retire the shoe between there and 700 km.
Daily Trainer shoes in NORMA's database range from 320 to 800 km across 694 models. At 700 km, the On Cloudmonster 2 sits in the upper half of that range.
Often, yes. A pair with under 60% wear (roughly 420 km) still has real training life left. NORMA lists second-rotation running shoes with transparent, verified mileage so you know exactly how much life you're buying.