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~640 km
Expected lifespan, based on hand-researched wear data for this model.
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Professional and user reviews report above-average build quality and longevity, with only mild abrasion after 20+ miles and high-quality materials noted. The upper and outsole construction are consistently praised, though some minor wear in the heel is possible over time.
The On Cloudflyer 4 is widely regarded by experts (Fleet Feet, Doctors of Running) as a moderate stability daily trainer with ample cushioning and a firm, rockered ride, making it highly suitable for everyday training and base mileage. Its cushioning and support also make it a good option for long runs, though the relatively firm midsole and noticeable weight (10.8 oz) mean it is less ideal for faster-paced efforts or marathon racing. The shoe's firmness and weight limit its suitability for tempo runs and racing, where lighter, more responsive models (like the On Cloudflow) are preferred. The Cloudflyer 4 is not designed for trail use, as its outsole is intended for road surfaces and can trap rocks, with limited traction on technical terrain. For recovery runs, the smooth, stable ride and cushioning provide comfort at easy paces, though some may find the firmness less plush than softer recovery shoes. User feedback on Reddit and review sites echoes these points, with praise for comfort and stability on daily and long runs, but criticism for weight and lack of responsiveness at faster paces.
Ideal for Best for intermediate to experienced runners with mild to moderate pronation seeking a stable, cushioned shoe for daily training and long runs. Ideal for those prioritizing support and durability over maximal softness or race-day speed.
The Cloudflyer 4 is a mild stability trainer with a firm, rockered ride and a roomy, true-to-size fit. The shoe offers a stable platform without intrusive sidewalls, and the unique lacing system allows for forefoot and midfoot adjustment. The heel is secure but may require use of the top eyelets for optimal lockdown. Suitable for runners seeking moderate support and a firmer, stable feel over longer distances.
Sizing: Fits true to size for most runners; no need to size up or down compared to standard running shoe sizing. Roomy fit noted, especially in the forefoot.
Daily Trainer shoes in NORMA's database last between 320 and 800 km across 694 models. At 640 km, the On Cloudflyer 4 sits in the upper half of that range.
The On Cloudflyer 4 stands out as a reliable daily trainer for runners who value stability and a balanced, cushioned ride. Its supportive build and improved midsole make it well-suited for long distances, while the secure fit and durable construction offer confidence on varied routes.
Full specs, fit notes, and reviews on the On Cloudflyer 4 wiki page.
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The On Cloudflyer 4 lasts about 640 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 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.
Daily Trainer shoes in NORMA's database range from 320 to 800 km across 694 models. At 640 km, the On Cloudflyer 4 sits in the upper half of that range.
Often, yes. A pair with under 60% wear (roughly 384 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.
