Brooks Glycerin 21
Key specs
- Weight
- 278 g
- Drop
- 10 mm
* Specifications pending verification against manufacturer data.
Shoe profile
- Comfort: 5/5
- Responsiveness: 2/5
- Stability: 4/5
- Durability: 4/5
- Grip: 3/5
- Versatility: 4/5
Runometry score
3.54/5
- Quality
- 3.6/5
- Fit
- 3.7/5
- Recency
- 0.8/5
Other criteria
- Cushioning
Specifications
Technical data in the reference size (men’s US 9 unless stated).
- Weight
- 278 g
- HeavyHeavier than 63% of 578 comparable models (same terrain)
- Drop
- 10 mm
- Very highHigher than 77% of 582 comparable models (same terrain)
- Midsole foam
- DNA LOFT v3
- Outsole
- RoadTack rubber
Sources & method
Best for
Categories
Characteristics
Model history
2026
2025
2024 This version
2022
2021
Related guides
How to choose running shoes
A practical method to pick your next pair — by use, cushioning, drop, stability and fit, not by hype.