Brooks Glycerin 21 VS Brooks Beast ’20: What Should I Buy?

Running shoes play a crucial role in any runner’s or fitness enthusiast’s journey, providing the necessary support, cushioning, and comfort to enhance performance and prevent injuries. Among the numerous options available, the Brooks Glycerin 21 and Brooks Beast ’20 stand out as exceptional choices.

These two models cater to different needs, making it essential to understand their unique features and capabilities. In this comprehensive comparison, we’ll explore their design, construction, and performance in-depth to help you determine which shoe aligns best with your running goals and preferences.

Comparison Table between Brooks Glycerin 21 and Brooks Beast ’20:

FeatureBrooks Glycerin 21Brooks Beast ’20
Launched In20222020
StabilityNeutralMaximum Support
FlexibilityGoodModerate
SizingTrue to SizeTrue to Size
Weight9.8 oz / 277.8g11.7 oz / 331.7g
CushionDNA LOFT v3BioMoGo DNA and DNA LOFT
OutsoleRubberRubber
MidsoleDNA LOFT v3BioMoGo DNA and DNA LOFT
UpperEngineered MeshEngineered Mesh
Retail Price$160$160

Features Comparison:

Material: Outsole, Insole, Upper

The Brooks Glycerin 21 features a durable rubber outsole designed to provide excellent traction on various surfaces, ensuring a secure grip during your runs.

The midsole is constructed with DNA LOFT v3 cushioning, a soft and responsive material that adapts to your stride, offering a plush and comfortable ride. The upper is crafted from engineered mesh, which provides breathability and a secure fit, allowing your feet to stay cool and dry.

Brooks Glycerin 21
Brooks Glycerin 21

Brooks Beast '20
Brooks Beast ’20

On the other hand, the Brooks Beast ’20 also boasts a rubber outsole for reliable traction. The midsole combines BioMoGo DNA and DNA LOFT cushioning, delivering a perfect balance of responsiveness and shock absorption.

The upper utilizes engineered mesh, ensuring a secure and comfortable fit while promoting airflow to keep your feet fresh.

Durability:

Both the Glycerin 21 and the Beast ’20 are built to withstand the rigors of regular running and training.

The high-quality materials used in their construction, combined with Brooks’ expertise in shoe engineering, ensure that these shoes will provide you with a long-lasting and reliable performance.

Fit:

The Glycerin 21 and the Beast ’20 are designed to offer a comfortable and secure fit. However, the Glycerin 21 is a neutral shoe, which means it caters to those with a neutral gait pattern, providing a balanced and natural stride.

Brooks Glycerin 21 TOP VIEW
Brooks Glycerin 21 TOP VIEW

Beast '20 TOP VIEW
Beast ’20 TOP VIEW

In contrast, the Beast ’20 is a stability shoe, offering maximum support for overpronators or those who require additional motion control during their runs.

Cushioning:

When it comes to cushioning, both shoes excel in their respective categories. The Glycerin 21 boasts DNA LOFT v3 cushioning, which provides supreme softness and an ultra-plush ride, making it an excellent choice for runners seeking maximum cushioning and comfort.

The Beast ’20, on the other hand, combines BioMoGo DNA and DNA LOFT cushioning, delivering a smooth and floaty-feeling run while still offering substantial cushioning for those who require more support.

Stability:

The Glycerin 21 is a neutral shoe, meaning it is designed for runners with a neutral gait pattern and does not offer additional stability features.

In contrast, the Beast ’20 is a stability shoe, incorporating features such as a medial posting and a wider base to provide maximum support and motion control for overpronators or those with lower arches.

Value for Money:

Both the Glycerin 21 and the Beast ’20 are premium running shoes from Brooks, a brand known for its quality and innovative technologies. While they share the same retail price of $160, their value lies in their ability to meet your specific running needs.

If you prioritize supreme cushioning and a plush ride, the Glycerin 21 may be the better choice. However, if you require maximum support and stability, the Beast ’20 could be the more valuable investment.

Performance Comparison:

For Walking:

Both the Glycerin 21 and the Beast ’20 are excellent choices for walking. The Glycerin 21’s plush DNA LOFT v3 cushioning provides a comfortable and responsive ride, making it an ideal option for long walks or casual strolls.

The Beast ’20, with its combination of BioMoGo DNA and DNA LOFT cushioning, offers ample support and cushioning, making it suitable for those who require additional stability during their walks.

For Running:

When it comes to running, the Glycerin 21 and the Beast ’20 cater to different needs. The Glycerin 21 is designed for neutral runners who seek supreme softness and a smooth, stable ride. Its plush cushioning and responsive midsole make it an excellent choice for long-distance runs or training sessions.

On the other hand, the Beast ’20 is tailored for runners who require maximum support and stability. Its medial posting and wider base provide motion control, making it an ideal option for overpronators or those with lower arches.

For Standing All Day:

If your job or lifestyle involves standing for extended periods, both shoes can provide the necessary comfort and support. The Glycerin 21’s plush cushioning and responsive midsole can help alleviate fatigue and discomfort caused by prolonged standing.

Similarly, the Beast ’20’s combination of cushioning and stability features can offer the necessary support and shock absorption to keep your feet comfortable throughout the day.

For Plantar Fasciitis:

Plantar fasciitis is a common condition that causes heel pain and inflammation. In such cases, the Beast ’20 may be the better choice due to its maximum support and stability features.

The medial posting and wider base can help alleviate the stress on the plantar fascia and provide the necessary motion control. However, for those with plantar fasciitis who prefer a more cushioned ride, the Glycerin 21 could also be a viable option, as its plush cushioning can help reduce impact and strain on the feet.

Conclusion:

Choosing between the Brooks Glycerin 21 and the Brooks Beast ’20 ultimately depends on your individual needs and preferences as a runner or fitness enthusiast.


If you prioritize supreme softness, a plush ride, and neutral support, the Glycerin 21 is an excellent choice. Its DNA LOFT v3 cushioning and responsive midsole provide a smooth and comfortable experience, making it ideal for long-distance runs or casual walks.

However, if you require maximum stability and motion control, especially if you overpronate or have lower arches, the Beast ’20 is the better option. Its combination of cushioning and stability features, including a medial posting and wider base, offer the necessary support and shock absorption for a secure and comfortable stride.

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