Lifespan: On Cloudultra 2
~640 km~398 mi
Add the km they've run to start the count.Add the miles they've run to start the count.
See full data on the Cloudultra 2
Buy, track or sell
No Cloudultra 2 listed right now.
Be first in line — we'll email you the moment a pair in your size lists.
About the shoe
The On Cloudultra 2 is purpose-built for long trail adventures, offering plush cushioning, secure traction, and a comfortable, adaptable fit for ultradistance efforts. Its breathable upper and innovative fit system make it a standout for runners tackling varied terrain and extended miles. While not the lightest option, it excels in comfort and versatility for those prioritizing support and durability.
Reports from expert reviews and user feedback indicate strong build quality, with the MissionGrip outsole and reinforced upper holding up well over varied terrain and extended use. There are few complaints about premature wear, and the shoe is praised for its longevity compared to other trail models.
Full specs, fit notes, and reviews on the On Cloudultra 2 wiki page.
Specs
295 g · 6 mm drop
Norma rating
8.3/10
The On Cloudultra 2 is widely regarded by experts and users as a top choice for trail running, especially on mild to moderately technical terrain, due to its substantial cushioning, improved MissionGrip outsole, and secure fit. Its maximum cushioning and responsive ride make it highly suitable for long trail runs and ultra distances, with reviewers consistently praising its comfort and protection over extended efforts. The shoe is also recommended for daily trail training and recovery runs, as the cushioning is supportive without being overly soft or unstable. However, its weight and moderate responsiveness make it less ideal for tempo runs or racing, where lighter, more propulsive shoes are preferred. While it can handle some road miles and casual use, its design and traction are optimized for trails rather than pure road running or high-speed efforts. Expert consensus highlights its versatility for hiking and all-day wear, but its true strengths are in long, comfortable trail runs and everyday trail training.
- Exceptional cushioning absorbs impact on long trail runs, reducing fatigue and protecting joints during ultradistance efforts
- Missiongrip outsole delivers reliable traction on a wide range of surfaces, from loose dirt to rocky technical trails, boosting runner confidence
- Breathable, sock-like upper keeps feet cool and secure, while the roomy fit and FlipRelease system accommodate swelling and allow quick adjustments mid-run
- Heavier than some competitors in the ultralight trail category, which may be noticeable for runners seeking maximum speed
- Light-colored versions stain easily on dusty or muddy trails, making them harder to keep looking clean
Best for and fit
Trail
Ideal for Best suited for intermediate to advanced trail runners or ultrarunners who prioritize cushioning, foot protection, and adaptable fit for long distances on varied terrain. Ideal for those training for or racing ultras, or anyone seeking a comfortable, supportive shoe for extended trail adventures.
The Cloudultra 2 is designed for long-distance trail running and ultramarathons, prioritizing comfort and protection. The upper is more breathable and softer than the previous version, with improved midsole softness. The shoe is not recommended for runners needing motion control or wide toeboxes. Lockdown is excellent for technical trails, and the moderate flexibility allows for natural foot movement without feeling overly stiff.
Sizing: Generally true to size for most runners; medium width throughout. No widespread recommendations to size up or down. Fits similarly to other On trail models, but some users with very wide feet may find the midfoot snug.
Against its category
560 km average348 mi average
Trail shoes in NORMA's database last between 180112 and 850 km528 mi across 444 models. At 640 km398 mi, the On Cloudultra 2 sits in the upper half of that range.
Other versions and similar shoes
- Cloudultra 2~640 km · 398 mi
- Cloudultra 3~620 km · 385 mi
Questions and guides
How many kilometres does the On Cloudultra 2 last?
The On Cloudultra 2 lasts about 640 km (398 miles), based on hand-researched wear data for this model. Your own mileage shifts with body weight, running surface, and how you use the shoe.
How many miles does the On Cloudultra 2 last?
About 398 miles (640 km), based on hand-researched wear data for this model.
When should I replace the On Cloudultra 2?
Start checking for wear around 384 km (60% of its lifespan). By 512 km the foam and outsole are usually noticeably degraded, and most runners retire the shoe between there and 640 km.
How does the On Cloudultra 2 compare to other trail shoes?
Trail shoes in NORMA's database range from 180 to 850 km across 444 models. At 640 km, the On Cloudultra 2 sits in the upper half of that range.
Is a used On Cloudultra 2 worth buying?
Often, yes. A pair with under 60% wear (roughly 384 km) still has real training life left. NORMA lists second-rotation running shoes, and sellers can add the miles they logged, so you can see how much life is left.