AVAILABLE FOR PREORDER
Select Color
420 - Cloud/Black/Gold
Select Width
Supreme Comfort
Glycerin 21
The same super soft cushioning for runners with a neutral stride.Lace up and head out in supreme comfort. For the men's Glycerin GTS 21, we added 2mm more super soft DNA LOFT v3 cushioning for extra plushness, while our innovative GuideRails support system keeps you comfortably in stride. Plus an updated, streamlined upper adds breathability.
Sustainability
Running Responsibly
We are committed to a long-term, science-based approach to sustainability. We know it's time to think bigger about the impact our products and their full life cycle have on people and the planet.
Percentage of recycled content
-
This metric refers to the percentage of material by weight that has been recycled from post- or pre-consumer sources.
Number of plastic bottles
-
Our roadmap to use recycled raw materials initially focuses on post-consumer sources, such as plastic bottles.
-
With help from our suppliers, we calculate the number of plastic bottles used to make a size medium of each product.
Climate action
We are using sound science to address climate change and align our efforts across every level of our business to reduce carbon emissions. This includes product designs, materialization, manufacturing, and our global supply chain.
LEARN MORE
Sustainable consumption
As we create new gear and run our global business, we also want to minimize our impact on the planet — so we are limiting our reliance on non-renewable resources by using more sustainable materials and reducing waste.
LEARN MORE
Responsible sourcing
An ethical global supply chain starts with factories and suppliers who share our values and our commitments to respect human rights, advance worker well-being and ensure sustainable manufacturing.
LEARN MORE
Running Responsibly
We are committed to a long-term, science-based approach to sustainability. We know it's time to think bigger about the impact our products and their full life cycle have on people and the planet.
Percentage of recycled content
- This metric refers to the percentage of material by weight that has been recycled from post- or pre-consumer sources.
Number of plastic bottles
- Our roadmap to use recycled raw materials initially focuses on post-consumer sources, such as plastic bottles.
- With help from our suppliers, we calculate the number of plastic bottles used to make a size medium of each product.
Climate action
We are using sound science to address climate change and align our efforts across every level of our business to reduce carbon emissions. This includes product designs, materialization, manufacturing, and our global supply chain.
LEARN MORESustainable consumption
As we create new gear and run our global business, we also want to minimize our impact on the planet — so we are limiting our reliance on non-renewable resources by using more sustainable materials and reducing waste.
LEARN MOREResponsible sourcing
An ethical global supply chain starts with factories and suppliers who share our values and our commitments to respect human rights, advance worker well-being and ensure sustainable manufacturing.
LEARN MOREBest for…
-
Supreme softness
-
Comfortable fit
-
Support
-
Road running
Features
- Supreme softness
- Improved fit
- Whole-body support
Designed for |
Midsole drop |
Weight |
APMA Seal of Acceptance
APMA Seal of Acceptance
The American Podiatry Medical Association (APMA) Seal of Acceptance recognizes products that promote good foot health. At Brooks, products across seven of our key franchises feature the APMA Seal of Acceptance. This Achievement highlights our leadership in biomechanical research for runners and anyone who spends extended time on their feet.
Compare
Super softness & support
Cushy comfort
Supreme softness
Compared to the Glycerin 20, the Glycerin 21 features 2mm more of our super-soft, nitrogen-infused DNA LOFT v3 cushioning to maximize softness.
Treat your feet right
Improved fit
New, engineered warp knit upper is breathable and allows for a flexible, accommodating fit while staying soft against your foot.
Stay in your stride
Smart support
Our innovative GuideRails® technology supports your body in its natural motion path while keeping excess movement in check.
Shop similar items
Men's road-running shoes
$160.00
1 color
Men's road-running shoes
$160.00
5 colors
Men's road-running shoes
$160.00
12 colors
Men's road-running shoes
$200.00
1 color
Men's road-running shoes
$160.00
3 colors
Men's walking shoes
$130.00
2 colors
Men's road-running shoes
$140.00
8 colors
Men's road-running shoes
$140.00
3 colors
Men's walking shoes
$130.00
2 colors
Men's walking shoes
$140.00
2 colors