Are you in search of our next favorite running shoe that combines comfort, performance, and style? Look no further than the Brooks Glycerin 21. As casual runners who value performance without the pressure of beating personal bests, we find this shoe to be quite the gem. Let’s dive into the specifics and see what makes this shoe tick from top to bottom.
Technical Specs
- Weight – 9.8oz or 278g for a US Men’s 9, 9.4oz or 266g for a US Women’s 7
- Cushion – 38mm of cushion and a 10mm heel/toe drop
- Pricing – $160 USD
- Colors – 7 colors

Upper: A Hug for Our Feet
One of the standout features of the Brooks Glycerin 21 is its upper. The shoe boasts an engineered mesh upper that fits like a glove, offering both breathability and support. We especially love how the 3D Fit Print technology liberates our feet, allowing a snug and flexible fit without feeling constricted. This shoe makes it feel like our feet are getting a gentle hug on every run, which is crucial for those longer routes where our feet need to breathe and move naturally.




Midsole: Soft, Yet Responsive
The midsole is truly where the Brooks Glycerin 21 shines. Infused with DNA LOFT cushioning, it offers a plush underfoot feel that’s soft and luxurious without compromising responsiveness. We noticed that this cushioning adapts to each stride, providing excellent shock absorption and energy return. Whether we’re hitting the pavement or a trail, the midsole cushioning ensures each step is smooth and comfortable, reducing fatigue over long distances.




Outsole: Grip and Flexibility
The outsole of the Brooks Glycerin 21 is built for durability and traction. Made of blown rubber, it delivers solid grip across various surfaces, which gives us confidence on unpredictable terrains. The outsole design promotes flexibility too, allowing the shoe to move naturally with our feet for a more dynamic running experience. The updated tread pattern aids in smoother transitions from heel to toe, making our strides feel more efficient and less labor-intensive.

Performance: Ideal for Casual and Regular Runners
When it comes to performance, the Brooks Glycerin 21 excels as an everyday trainer. It’s perfect for those of us who enjoy regular runs but aren’t necessarily gearing up for races. The shoe offers a balanced ride that works well for short jogs and longer runs alike. Many times, finding a shoe that balances comfort with performance can be a challenge, but the Glycerin 21 rises to the occasion beautifully.
Stability: Support Without Restriction
Even though these shoes are designed primarily for cushioning, they don’t skimp on support. The internal bootie construction provides a secure fit that stabilizes the foot without feeling overly rigid. This feature is particularly advantageous for those of us who appreciate subtle guidance without sacrificing the natural movement of our feet. It’s clear that Brooks designed the Glycerin 21 with an understanding of what everyday runners need.
Aesthetic: Sleek and Modern
Looks aren’t everything, but let’s be honest – we all appreciate a good-looking shoe. The Brooks Glycerin 21 offers a sleek and modern design that is versatile enough for casual wear beyond runs. Multiple color options allow us to express our personal style, whether we prefer classic black or something more vibrant. The shoe’s appearance might just be the added motivation we need to lace up and hit the road.

Overall Impressions: A Remarkable Running Companion
After spending ample time with the Brooks Glycerin 21, it’s clear that this shoe is a remarkable companion for runners like us. Its combination of plush cushioning, supportive fit, and durable construction makes it a standout option for those seeking comfort and performance in one package. Whether new to running or seasoned, Brooks Glycerin 21 is a reliable choice that won’t disappoint.
In summary, the Brooks Glycerin 21 excels in offering a balanced, comfortable running experience suited for casual and regular runners alike. With its thoughtfully-designed upper, dynamic midsole cushioning, and durable outsole, this shoe checks all the boxes and then some. Happy running!
Learn more on the Brooks website
Buy them now and read more on Running Warehouse
These shoes were provided by the manufacturer or its partners for the sole use of review. No implied or explicit guarantees were provided as it relates to the provision of these products and all editorial commentary is strictly the property of Running Northwest. In short, the fact they allowed us to test these shoes does not mean we are required to give it a favorable review… every product must earn it. We appreciate our manufacturer partnerships and if you have any questions, you can read our Disclosure Policy in further detail.
Check Out Other Reviewers Thoughts
As always, we gather together some of our favorite reviewers so you can get a well-rounded view of the shoe. Here are our favorites.












