The Brooks Glycerin 21 is a high-performance running shoe designed specifically for heel strikers. With a significant **12 mm drop**, it offers a stable ride, making it ideal for long-distance runs.
Lab tests indicate that the **31.5 HA foam** provides a firm yet comfortable platform, ensuring adequate support throughout your run. The durable outsole enhances grip and longevity, contributing to overall performance.
While the Brooks Glycerin 21 excels in cushioning and stability, its design may not suit all runners, particularly those who prefer cooler footwear options during hot summer conditions.
Pros
- More cushioning
- Built-like-a-tank outsole
- Ideal for long runs
- Lighter than predecessor
- Comfortable fit
- Great stability
Cons
- Slightly warm
- Minor price hike
- Rigid heel counter
Key Features
- Neutral Support: Tailored for runners looking for maximum cushioning without added support.
- Supreme Softness: Enhanced nitrogen-infused DNA Loft v3 cushioning ensures a lightweight yet responsive experience.
- Plush Improved Fit: Features an internal stretch bootie that adapts with your movement while providing a soft touch against the skin.
- Smooth, Stable Transitions: A broad platform enhances stability and promotes seamless heel-to-toe transitions.
Specifications
- Origin: Imported
- Sole Material: Synthetic Rubber
- Outer Material: Synthetic Resin
- Inner Material: Mesh