Brooks has released its 20th version of the Glycerin, describing it as their “softest cushioning for supreme comfort and distraction-free miles”. For years, Glycerin’s have been depended on as Brooks’ go-to neutral, cushioned shoe when venturing on those long-runs, and that has not changed this year.
Brooks’ marketing has focussed on maximum cushioning and comfort, however if you have ever tried any of the past versions of the Glycerin’s you may not think of them as having a “soft feel”. Compared to other max-cushioned shoes like the Nimbus, Triumph and Clifton, Glycerin is definitely on the firmer cushioned side of the spectrum. However, some runners prefer this as it can be more responsive and provides a more stable ride.
The Ghost is another big player in Brooks’ cushioned line and if you’re trying to decide between the Glycerin and the Ghost, well there are a few differences. When comparing the two, it’s worth noting that the Ghost incorporates a midsole that combines DNA Loft v2 and BioMogo foams, while the Glycerin boasts a full DNA Loft midsole. Now if you’re sat here wondering what BioMoGo DNA is, it’s basically an adaptive midsole made of EVA (ethylene-vinyl acetate) foam. Whereas DNA Loft is a combination of materials and is the softest foam Brooks’ uses in any of their shoes. Both foam blends are boasted by Brooks “to create dynamic cushioning that accounts for a runner’s unique stride, weight, and speed” without compromising on durability.
The Glycerin is also softer and more comfortable upper in comparison to the Ghost, however it comes in at $20 more.
Table of Contents
Pros
- New cushioned midsole
- Comfortable and padded upper
- Great traction on a variety of surfaces
- Very durable
Cons
- Increased weight
- Heel not as stable on turns and hills
Specifications
Brand – Brooks
Model – Glycerin 20
Family – Glycerin
Previous Model – Glycerin 19
Type – Cushioning
Weight – 258g (9.1oz)
Heel – 38mm
Toe – 28mm
Drop – 10mm
Carbon plate – No
Sizing – True to size
Usage – Daily training
Brooks Glycerin 20 First Impression
Brooks have made a few tweaks this year compared to the Glycerin 19. They include an updated nitrogen-infused DNA LOFT v3 midsole for increased cushioning, a redesigned outsole for smoother transitions, and a new engineered mesh upper that is lighter and with more breathability.
If there’s one category Brooks won’t be winning awards in, it’s looks and style. Brooks’ is a dependable brand, and this is nothing knew when it comes to the look of the Glycerin 20. They look almost identical to the previous version.
When getting stuck into some runs, I found even given the adaptations to the midsole technology, they still maintained a firmer ride while not compromising on upper comfort and support which I quite liked.
Brooks Glycerin 20 Upper
As mentioned prior, the Glycerin 20 upper design doesn’t feature any striking elements, but it is functional and effective. It employs engineered air mesh to ensure breathability, all while delivering a comfortable and adaptable fit. 3D fit print has been used in the upper and utilises screen-print technology to apply structure to the shoe while also allowing flexibility. This essentially helps securing the midfoot. Inside the upper, Brooks incorporates an OrthoLite sock liner, ensuring a soft and comfortable fit.
Overall, I found the upper quite comfortable in feel and fit, and measured true-to-size. My midfoot felt secure and locked in during all runs without compromising on comfort. The toebox is a moderate size without being too big. The heel collar is generously padded and comfortable, however, I did find my heel was not quite as locked in as I would have liked. On steeper hills and sharp turns it did not feel as secure as my heel had a bit of room to move, however using a heel lock with my laces does offset this a little.
Brooks Glycerin 20 Midsole
Finally, Brooks has formulated a nitrogen-infused midsole in their v3 of the DNA Loft used in the Glycerin 20. This is a welcomed improvement, and brings the Glycerin’s up to par with other comparable cushioned trainers on the market with carbonated midsoles. As a result, is has slightly more responsiveness and bounce than the Glycerin 19, however, still maintains a firm feeling ride.
The Glycerin was primarily crafted for comfortable, easy paces, and this is where it truly excels. Much like all its previous versions, the Glycerin 20 is best suited to tackle those slower, long runs. Although it can handle picking up the pace, I found the lack of energy return and weight makes it harder and more effortful when accelerating and holding a steady, faster pace.
Trending in the wrong direction, the weight has tipped the scales with the Glycerin 20 measuring up to 258g (9.1oz), whereas the Glycerin 19 comes in at a lighter 255g (8.9oz). This is a noticeable weight when comparing to other similar shoes on the market, and will drag you down even more when wet. Hopefully in future versions we see this tip in a lighter direction.
Brooks Glycerin 20 Outsole
Beneath the midsole, Brooks has kept it’s soft, blown rubber outsole. Brooks likes to use this blown rubber outsole in an effort to create a softer landing and maintain grip.
Not much has changed in the structure of the outsole from the previous Glycerin 19. There is still a long strip of rubber running on the medial side from the rearfoot to just before the forefoot to provide more traction and stability (as there is less flex through the midfoot). There is similarly still a missing rubber section on the lateral side of the midfoot. However, saving on weight comes at a cost as I have found this area is prone to wearing faster due to its lack of protection.
You’ll find flex grooves running laterally along the forefoot to facilitate the sole’s flexibility. These grooves, in conjunction with the exceptionally durable rubber outsole instil a strong sense of confidence on virtually any terrain or under various conditions.
Additionally, when you have worn out their run cycle or are ready for an upgrade, I find them great as an everyday trainer for walking, easy hiking and gym.
Brooks Glycerin 20 Conclusion
Overall, the new alterations made to the Glycerin 20 have pros and cons. Although the new nitrogen-infused DNA LOFT v3 is a vast improvement for extra comfort, the increased weight is not ideal.
Additionally, if you’re after a more versatile everyday trainer where you can push the pace a little more than just an easy, slow run, then you’ll find yourself putting in the effort. The Brooks Ghost would be more suited to this.
Now if you’re looking for more medial and lateral stability (ie you tend to over-pronate or supinate) during your runs, Brooks also has the Glycerin 20 GTS. If you’re not familiar with GTS, this is Brooks’ increased stability option. GTS stands for “Go-to-support” and is basically a structure of two guardrails (extra strips of firm foam) on the medial and lateral heel that limits excessive medial and lateral movement of the foot. However, this will set you back a further $10 and as you can image, will bump up the weight even more (266g (9.3oz)).
In conclusion, Glycerin’s are made for long runs and are also ideal as an everyday trainer, whether you’re pounding the pavement, hitting the gym, or going for a walk, Glycerin’s can do it all.
We purchased these shoes with our own money from Brooks.
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