Brooks Glycerin 21

My analysis of the recently launched Brooks Glycerin 21 began with my debut at the 2024 Mitja Marató Barcelona. The results? Exceptionally positive and fulfilling.

In Barcelona, my aim wasn’t to set records but to finish the 21k with superb running sensations—a mission accomplished with the Brooks Glycerin 21 running shoes

First sensations of the Brooks Glycerin 21

The Glycerin 21, as suggested by its name, is the 21st iteration of this standout American model. It signifies more than two decades of continuous improvement, underscoring the shoe's longstanding appeal and success.

Brooks has been creating, working on and improving the Glycerin concept for more than 21 years. And it's been more than 21 years that this shoe first found its audience, otherwise, obviously, it would not have achieved this longevity.

Brooks Glycerin 21 runner profile

Now let's get into the actual test of these Glycerin 21 from Brooks Running.

Firstly, to answer the obvious question: "What is Glycerin?" The hallmark of the Glycerin range is its exceptional balance of cushioning and comfort.

Regarding the runner profile, one of the standout features of the Glycerin 21 is its suitability for a broad spectrum of runners. It's particularly well-suited for those with a neutral gait, aiming for a versatile shoe that performs well in both training and competitive long-distance events like marathons.

What I liked the most about the Brooks Glycerin 21

Foremost, the shoes provide superb cushioning and comfort with every mile. This version, the Glycerin 21, features the premium DNA Loft 3 compound, which excels in shock absorption while maintaining responsiveness.

From my perspective as both a runner and a reviewer, it's clear that these shoes are perfectly tailored for the everyday runner tackling a half or full marathon.

It's impossible to overlook the improvements in this model. The midsole is bulkier yet lighter than previous versions, enhancing the experience at the Mitja Marató Barcelona 2024 with its lightness and responsive cushioning. Running has never been more enjoyable with the mantra "RUN HAPPY" in the Brooks Glycerin 21!

Another positive aspect of the Glycerin 21 is the durability of its outsole. After 10 weeks of training, the shoes are just beginning to show signs of wear. The strategically placed durable rubber pieces not only ensure optimal grip but also enhance stability compared to the Brooks Glycerin 20.

The heel area is robustly protected; it maintains a traditional design in this area, sticking to a tried-and-true approach. The upper is made from a generous, elastic fabric that conforms well to the foot’s shape, offering ample ventilation through tiny gaps.

Brooks Glycerin 21: improvement opportunities

Despite my affiliation with the RUNNEA TEAM, I must candidly suggest that Brooks Running should hesitate before releasing a new version. The Brooks Glycerin 21 has achieved such a refined balance of features that it might just be the best iteration ever designed.

As it stands, there are few, if any, significant areas for improvement.

What are the direct rivals of the Brooks Glycerin 21?

In the highly competitive segment of maximum cushioning shoes, the Brooks Glycerin 21 has carved out its niche and stands toe-to-toe with some of today’s leading models:

Brooks Glycerin 21 is your best choice, if:

Given all I've shared about this daily training shoe, it's clear that the Brooks Glycerin 21 not only meets but exceeds expectations in many respects.

They are the culmination of years of innovation and refinement, ideal whether you're gearing up for a half marathon, a full marathon, or simply seeking a dependable, comfortable shoe for everyday workouts. The Brooks Glycerin 21 is likely to transform your running experience. Would you like to give them a try? I assure you, with this model, that's precisely what you'll achieve.