~550 km
Expected lifespan, based on hand-researched wear data for this model.

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Multiple sources, including a 100-mile wear test, report excellent outsole and upper durability with minimal signs of wear. The TrailTack Green outsole and reinforced mesh upper hold up well even on technical terrain.
The Brooks Catamount 3 excels as a lightweight, agile trail shoe with a snappy, responsive ride and improved flexibility over its predecessor, making it highly suitable for tempo efforts and racing on trails. Its TrailTack Green outsole provides reliable traction on varied surfaces, and the shoe adapts well to technical terrain, though some users report foot soreness on very long runs, limiting its appeal for ultramarathon distances. The snug, lower-volume fit and firm cushioning may not be ideal for daily base miles or recovery runs, especially for those preferring plush, forgiving shoes. While the upper lacks breathability, the shoe's durability and stability are strengths for trail use.
Ideal for Best for experienced trail runners or road runners transitioning to trails who prioritize speed, agility, and a secure fit. Ideal for those training for trail races up to 50k, favoring dry to moderately technical terrain, and seeking a shoe that balances protection with a fast, responsive ride.
The Catamount 3 offers a more performance-oriented, secure fit than previous Brooks trail shoes, with a snug heel and midfoot and a slightly shallow toebox. The upper is flexible and adapts well to foot movement, while the shoe remains stable and comfortable for technical terrain. The SkyVault plate provides protection and mild propulsion but does not deliver a carbon plate-like 'pop.'
Sizing: True to size; no need to size up or down compared to standard running shoe sizing. Fit is more secure and slightly snug compared to previous Catamount models, especially in the toebox and midfoot.
Trail shoes in NORMA's database last between 320 and 850 km across 315 models. At 550 km, the Brooks Catamount 3 sits in the lower half of that range.
The Brooks Catamount 3 stands out as a lightweight, responsive trail shoe built for speed and versatility across a range of surfaces. Its combination of a lively midsole, protective plate, and durable outsole makes it a strong choice for runners seeking a fast, nimble feel without sacrificing stability. Best suited for moderate distances and dry to mixed trail conditions, it excels in uptempo training and racing.
Full specs, fit notes, and reviews on the Brooks Catamount 3 wiki page.
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The Brooks Catamount 3 lasts about 550 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 330 km (60% of its lifespan). By 440 km the foam and outsole are usually noticeably degraded, and most runners retire the shoe between there and 550 km.
Trail shoes in NORMA's database range from 320 to 850 km across 315 models. At 550 km, the Brooks Catamount 3 sits in the lower half of that range.
Often, yes. A pair with under 60% wear (roughly 330 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.