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Brooks
~600 km
Expected lifespan, based on hand-researched wear data for this model.

Expected life
~600 km
Check wear at
360 km
Usually worn by
480 km
Got a pair? Check how much life is left.
Free, 4 quick questions with this shoe pre-selected. Wear percentage, km remaining, and what your pair is worth.
Check your Glycerin 20RunRepeat and Fleet Feet note the shoe's robust build, with ample outsole rubber coverage and quality materials. User feedback on Reddit and retail sites generally reports good longevity, with most runners seeing typical mileage (300-500 miles) before significant wear. Some minor reports of outsole wear exist but are not widespread.
Daily Trainer shoes in NORMA's database last between 320 and 800 km across 578 models. At 600 km, the Brooks Glycerin 20 sits in the upper half of that range.
The Brooks Glycerin 20 delivers a plush, stable ride with its nitrogen-infused midsole and supportive upper, making it a standout for comfort-focused runners. While not the most energetic option for speedwork, its durability and soft cushioning excel on daily miles and recovery days. Ideal for those seeking a reliable, high-mileage trainer that prioritizes comfort.
Full specs, fit notes, and reviews on the Brooks Glycerin 20 wiki page.
The Brooks Glycerin 20 lasts about 600 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 360 km (60% of its lifespan). By 480 km the foam and outsole are usually noticeably degraded, and most runners retire the shoe between there and 600 km.
Daily Trainer shoes in NORMA's database range from 320 to 800 km across 578 models. At 600 km, the Brooks Glycerin 20 sits in the upper half of that range.
Often, yes. A pair with under 60% wear (roughly 360 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.