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How long does the Brooks Glycerin 21 last?
Brooks
~560 km
Expected lifespan, based on hand-researched wear data for this model.
Daily Trainer
Hand-researched
Norma Score 8.5/10
Expected life
~560 km
Check wear at
336 km
Usually worn by
448 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 21Why it lasts that long
Reviewers consistently report excellent build quality and longevity. The outsole rubber is thick and hard-wearing, and after significant mileage (e.g., 80 km), there is minimal visible wear. The exposed midsole foam is also tough and resists scuffs and abrasions, indicating strong durability for a daily trainer.
- Foam:
- EVA
- Midsole:
- Nitrogen-infused DNA LOFT v3 foam
- Drop:
- 10 mm
- Weight:
- 278 g
Among daily trainer shoes
320 kmGlycerin 21: 560 km800 km
Daily Trainer shoes in NORMA's database last between 320 and 800 km across 578 models. At 560 km, the Brooks Glycerin 21 sits in the upper half of that range.
About the Glycerin 21
The Brooks Glycerin 21 stands out as a top-tier cushioned trainer, blending a luxuriously soft ride with a surprisingly light feel for its class. Runners seeking maximum comfort for daily training and long distances will appreciate the plush midsole and accommodating fit, though those in hot climates may find the upper a bit too warm.
Full specs, fit notes, and reviews on the Brooks Glycerin 21 wiki page.
Common questions
How many kilometres does the Brooks Glycerin 21 last?▼
The Brooks Glycerin 21 lasts about 560 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.
When should I replace the Brooks Glycerin 21?▼
Start checking for wear around 336 km (60% of its lifespan). By 448 km the foam and outsole are usually noticeably degraded, and most runners retire the shoe between there and 560 km.
How does the Brooks Glycerin 21 compare to other daily trainer shoes?▼
Daily Trainer shoes in NORMA's database range from 320 to 800 km across 578 models. At 560 km, the Brooks Glycerin 21 sits in the upper half of that range.
Is a used Brooks Glycerin 21 worth buying?▼
Often, yes. A pair with under 60% wear (roughly 336 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.