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If you're looking for supreme softness and ultimate comfort, the men's neutral Glycerin 21 running shoe provides an ultra plush ride thanks to even more soft DNA LOFT v3 cushioning than before, plus a new, more streamlined upper that delivers structure and 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
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Our roadmap to use recycled raw materials initially focuses on post-consumer sources, such as plastic bottles.
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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…
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Supreme softness
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Comfortable fit
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Smooth and stable transitions
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Road running
Features
- Supreme softness
- Improved fit
- Smooth, stable transitions
Designed for |
Road
|
Midsole drop |
10mm
|
Weight |
9,8oz / 277,8g
|
![APMA Seal of Acceptance](https://www.brooksrunning.com/dw/image/v2/BGPF_PRD/on/demandware.static/-/Library-Sites-BrooksRunningShared/default/dwe5d4dc0e/images/award/S22-PCP-APMA-AwardBadge-200x200.png?sw=60&sh=60&sm=cut)
APMA Seal of Acceptance
APMA Seal of Acceptance
![APMA Seal of Acceptance](https://www.brooksrunning.com/dw/image/v2/BGPF_PRD/on/demandware.static/-/Library-Sites-BrooksRunningShared/default/dwe5d4dc0e/images/award/S22-PCP-APMA-AwardBadge-200x200.png?sw=60&sh=60&sm=cut)
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
Cushion Level
Most
Most
Most
Most
Midsole Drop
10mm
10mm
10mm
10mm
Features
Soft and Smooth
Soft and Supportive
Soft and Adaptable
Adaptable and Supportive
Weight
277.8g
297.7g
263.7g
283.5g
Support Level
Neutral
Support
Neutral
Support
Super softness with every step
![Supreme softness](https://www.brooksrunning.com/on/demandware.static/-/Library-Sites-BrooksRunningShared/default/dw6cee1766/cms-content/Project/ADT/Brooks-Running/EMEA/PDP/2024/Glycerin-21/feature-callouts/110419-474-pdpcallout-2-S-fc1-s24.png)
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.
![Improved fit](https://www.brooksrunning.com/on/demandware.static/-/Library-Sites-BrooksRunningShared/default/dwf60e033b/cms-content/Project/ADT/Brooks-Running/EMEA/PDP/2024/Glycerin-21/feature-callouts/110419-474-pdpcallout-3-S-fc2-s24.png)
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.
![Smooth, stable transitions](https://www.brooksrunning.com/on/demandware.static/-/Library-Sites-BrooksRunningShared/default/dw98f626f0/cms-content/Project/ADT/Brooks-Running/EMEA/PDP/2024/Glycerin-21/feature-callouts/110419-474-pdpcallout-4-S-fc3-s24.png)
Find your flow
Smooth, stable transitions
The broad platform stabilizes your foot and promotes smooth heel-to-toe transitions.