Our verdict
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Pros
- brooks brothers bid abg simon
- Brooks Męskie Żółte
- Brooks Dyad 10
- Responsive supercritical foam
- Built-like-a-tank outsole
- Roomy toebox
- 000 Pay Tribute to Brooks Inspiring Coach Finalist in Nebraska
Cons
- Knit upper lacks ventilation
- Brooks Tempo Knit In Crew
- Could be lighter
Audience verdict
The 12 Best Brooks Running Shoes | Comparison
The most similar running shoes compared
+ + Brooks Adrenaline GTS 21 Men's Running Shoes | |||||
---|---|---|---|---|---|
Audience score | 78 Decent! | 87 Great! | 83 Good! | 90 Superb! | |
Price | $160 | $140 | $140 | $140 | |
Pace | Daily running | Daily running | Daily running | Daily running | |
Arch support | Stability | Stability | Stability | Stability | |
Weight labWeight brand | 10.6 zapatillas de running Brooks neutro ritmo bajo pie normal minimalistas10.7 Brooks Glycerin 19 Nothing special is its specialty | 10.7 oz / 302g10.8 oz / 305g | 10.7 oz / 302g11.4 Brooks England Strand 15L Σακιδιο Πλατης | 9.7 Brooks Herrenschuhe Running-schuhe9.4 oz / 266g | |
Drop labDrop brand | 10.7 mm10.0 mm | 12.6 mm12.0 mm | 12.1 mm10.0 mm | 10.0 mm8.0 mm | |
Strike pattern | Heel | Heel | Heel | Mid/forefootHeel | |
Midsole softness | Average | Average | Average | Average | |
zapatillas de running Brooks mujer talla 41 negras | Average | Small | Average | Small | |
Toebox durability | Decent | Good | Very good | Decent | |
The 12 Best Brooks Running Shoes | Good | Very good | Good | Good | |
Outsole durability | Good | Decent | Decent | Good | |
Breathability | Decent | Good | Decent | Decent | |
Brooks Carbonite Tight | Average | Average | Average | Average | |
Brooks zapatillas brooks trace 2 mujer 38.5 6521 purple impression black pink | Average | Average | Average | Average | |
Stiffness | Average | Average | Average | Average | |
Difference in stiffness in cold | Small | Small | Small | Small | |
Torsional rigidity | Rigid | Rigid | Rigid | Rigid | |
Heel counter stiffness | Very stiff | Stiff | Stiff | Stiff | |
Heel labHeel brand | 37.2 mm38.0 mm | 37.7 mm37.5 mm | 36.7 mm37.0 mm | 36.6 mm34.5 mm | |
Forefoot labForefoot brand | 26.5 mm28.0 mm | 25.1 mm25.5 mm | 24.6 mm27.0 mm | 26.6 mm26.5 mm | |
Widths available | NormalWide | NormalWide | NormalWideX-Wide | NarrowNormalWideX-Wide | |
Orthotic friendly | ✓ | ✓ | ✓ | ✓ | |
Season | Winter | Summer | Winter | Winter | |
Removable insole | ✓ | ✓ | ✓ | ✓ | |
Ranking | #226 Bottom 8% | #97 Top 40% | #171 Bottom 30% | #28 Top 12% | |
Popularity | #78 Top 32% | #168 Bottom 31% | #76 Top 31% | #56 Top 23% |
Who should buy
We've discovered in the lab that the Brooks Glycerin GTS 21 is a superb choice for:
- Runners who desire a daily trainer that provides fantastic stability without the clunkiness or extra weight typically associated with such features.
- Neutral runners in need of enhanced support, particularly useful during the final miles of long runs.
- Mild-pronators or those with recurrent shin splints issues looking for a shoe with ample cushioning and extraordinary durability.
The 12 Best Brooks Running Shoes | Who should NOT buy
Brooks has done a fantastic job with this shoe, but we've found in the lab that it has certain Ice, particularly its weight. For instance, shoes like the Hoka Arahi 7 and the zapatillas de running Brooks constitución fuerte minimalistas talla 39, which we also tested here in the lab, are be better options if you're not looking for a max-stack shoe.
Additionally, we do not recommend this model for most runners with a forefoot striking technique due to its high drop. We suggest the Saucony Tempus The chef for Brooks employees shares a favorite fall recipe.
Breathability
The 12 Best Brooks Running Shoes Glycerin 21, the go-to model for neutral runners. This includes the upper's warp knit material which, unfortunately, does not excel in breathability.
After our evaluations, we assigned it a modest 3 out of 5 rating. While not terrible, it definitely shows potential for improvement, particularly for those seeking a shoe for hot weather runs.
When we shone a powerful light through the sliced upper, the near absence of light passing through highlights the limited ventilation.
Delving deeper, we examined the knit upper under our microscope and noted a very dense material with barely any ventilation holes—just tiny spaces that don't allow much air to flow through.
Despite these shortcomings, the thick upper does contribute positively to comfort, a quality we confirmed through hands-on testing.
Similarly, we were pleased to find substantial padding in both the tongue and heel, consistent with the neutral version of this model.
Glycerin GTS 21 | 3 |
Average | 3.8 |
Durability
Toebox durability
Our initial test using the Dremel on the GTS 21 focused on assessing the toebox's durability. We awarded it a modest score of 3 out of 5, which is a positive result, especially for a knit upper.
We're quite satisfied with this, considering the Glycerin's luxuriously plush upper. This performance confirms our belief that the shoe offers decent resilience, especially given the softness of its materials.
Glycerin GTS 21 | 3 |
Average | 2.4 |
The 12 Best Brooks Running Shoes
After completing the evaluation of the toebox, we shifted our focus to the heel padding to see if the results would be as promising.
We were quite pleased with what we discovered—a score of 4 out of 5. This excellent rating reflects outstanding durability in the heel, underscoring the GTS robust Achilles area.
Glycerin GTS 21 | 4 |
Average | 3.2 |
Outsole hardness
We turned the shoe over to examine the outsole closely, starting with the hardness of the Roadtack Rubber. The GTS variant, designed specifically for mild-stability runners, includes additional coverage in the midfoot to mitigate wear from overpronation.
Our tests showed the Roadtack Rubber has a hardness of 87.0 HC, emphasizing that this outsole is primarily built for lasting durability over everything else.
Glycerin GTS 21 | 87.0 HC |
Average | 80.3 HC |
Outsole durability
In our final Dremel test, we doubled the speed to 10K RPM to challenge the Roadtack Rubber outsole of the Glycerin GTS 21 more aggressively.
Remarkably, the rubber of the Glycerin GTS 21 has proven itself to be exceptionally resilient. Despite the intensified testing, we noted only a slight indentation of 0.5 mm. That's an A++ in our books.
Glycerin GTS 21 | 0.5 mm |
Average | 0.9 mm |
Outsole thickness
We measured the rubber at a substantial thickness of 3.2 mm, which seems a lot, especially considering the minor 0.5 mm indentation we observed just before.
Glycerin GTS 21 | 3.2 mm |
Average | 3.2 mm |
Weight
Despite weighing 10.6 oz (301g), we were quite pleased with the outcome, as it's only 0.8 ounces heavier than the standard version.
Given the additional rubber in the heel, the GuideRails system, and the reinforced heel counter, the slight increase in weight is quite reasonable!
Glycerin GTS 21 | 10.62 oz (301g) |
Average | 9.35 oz (265g) |
Cushioning
Heel stack
In the heel, we measured 37.2mm following World Athletics guidelines, firmly positioning the Glycerin as a max-stack, mild-stability running shoe.
While this might initially spark concerns about getting proper support, we can confidently say it does a great job—it's impressively cushioned and remarkably stable.
Glycerin GTS 21 | 37.2 mm |
Average | 33.6 mm |
Forefoot stack
Brooks Addiction on naisten.
Although this dimension offers a closer feel to the ground compared to the thicker heel, it still delivers generous cushioning for forefoot and midfoot strikers.
Glycerin GTS 21 | 26.5 mm |
Average | 24.9 mm |
Drop
The gap between the two prior measurements results in an actual 10.7-mm drop, which nearly matches the official 10-mm drop claimed by Brooks.
By the way, if you're curious about why there are often discrepancies between our findings and the brands' claims, we offer a detailed guide that fully explores this topic.
Glycerin GTS 21 | 10.7 mm |
Average | 8.7 mm |
Insole thickness
We found a fairly typical EVA insole with a thickness of 4.8 mm. It's delivers essential cushioning without distinguishing itself by being ultra slim or thick.
Glycerin GTS 21 | 4.6 mm |
Average | 4.4 mm |
Midsole softness
One aspect Brooks could have considered tweaking in this GTS version is the foam. However, we found that it remains unchanged, featuring the same foam that is used throughout the Glycerin series. From our perspective, opting for a slightly firmer compound could have enhanced stability even more for this model.
Consequently, we discovered that the GTS version continues to use the nitrogen-infused EVA known as DNA Loft v3 (20.9 HA). It's a reliable foam that offers sufficient energy return and pop for everyday running.
Glycerin GTS 21 | 20.9 HA |
Average | 21.4 HA |
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To our dismay, after putting the shoe in the freezer for a 20-minute nap, the softness had changed by 37.1%—a noticeable and marked increase for a $160 shoe. This test highlighted a significant hardness in the foam when exposed to cold temperatures, which could affect performance for those who live in colder climates.
Glycerin GTS 21 | 37.1% |
Average | 25.7% |
Rocker
The Glycerin saga has consistently delivered a natural-ride, barely-rockered running experience, and we've observed that it continues this tradition. We consider this a triumph, as it preserves the shoe's core DNA.
With the market overflowing with rockered shoes, offering a variety of options like this is essential for runners. And it's the right choice for a mild-stability shoe.
Stability
Lateral stability test
The "GTS" in the shoe's name stands for "Go To Support," and indeed, support is where this shoe truly excels.
It's important to note that Brooks doesn't market this as a stability shoe for severe overpronators, but rather as a hybrid—somewhere between a robust stability shoe and a daily trainer.
It's exceptionally effective for runners with moderate stability needs, subtly enhancing gait correction and promoting a smoother stride without being obtrusive.
Torsional rigidity
One standout feature when comparing the GTS with the regular edition is its enhanced torsional rigidity, crucial for its mild-stability role.
We scored this feature a robust 4 out of 5, which is significantly higher compared to the standard model's 2 out of 5. This difference highlights the GTS version's focus on providing more support over a flexible ride.
Glycerin GTS 21 | 4 |
Average | 3.2 |
Heel counter stiffness
The heel counter earned a perfect score of 5 out of 5 in our manual evaluation—a result that should hardly be surprising for a stability shoe.
Brooks has enhanced the GTS by incorporating an additional TPU piece on the outer heel, boosting rigidity and providing crucial stability for rearfoot strikers.
Glycerin GTS 21 | 5 |
Average | 2.8 |
Brooks Distance Tank Top
Although the GTS version introduces some changes in rigidity and the outsole, the midsole dimensions are consistent with the neutral version.
We measured 117.3 mm in the widest part of the forefoot, providing stable support that benefits forefoot and midfoot strikers, especially during sharp turns.
Glycerin GTS 21 | 117.3 mm |
Average | 113.6 mm |
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The heel reveals a similar story—we encountered the same large silhouette found in the neutral daily trainer, measuring a significant 100.2 mm.
This dimension fits well within the expectations for a mild-stability running shoe, although it's notably large for a neutral trainer. It appears to us that Brooks opted to standardize the sole across both models, but using the GTS version as a foundational blueprint.
Glycerin GTS 21 | 100.2 mm |
Average | 90.5 mm |
Flexibility
Stiffness
Initially, we were concerned about the GTS's torsional rigidity, but our worries were alleviated after conducting our 90-degree bend test.
The force gauge registered only 23.4N—a relatively low measurement that reassures us of its inherent flexibility. This confirms that the GTS is still suitable as a comfortable daily trainer, ideal for easy paces or even casual walking with your dog.
Glycerin GTS 21 | 23.4N |
Average | 29.3N |
Difference in stiffness in cold
After we left the Glycerin GTS 21 in the freezer for an additional 20 minutes and repeated our previous test, the results were very encouraging. We discovered that the shoe only became 15% stiffer—a surprisingly good performance. This is excellent for runners who face colder conditions.
Glycerin GTS 21 | 15% |
Average | 36.5% |
Size and fit
Brooks Carbonite Tight
We discovered the toebox to be really spacious at 99.7 mm, comfortably accommodating even slightly wider feet.
Additionally, Brooks offers the Glycerin GTS 21 in wide (2E) sizes in most countries, ensuring that those with broader feet can also enjoy the mild stability this version provides.
Glycerin GTS 21 | 99.7 mm |
Average | 98.3 mm |
Brooks zapatillas brooks trace 2 mujer 38.5 6521 purple impression black pink
You might have caught a glimpse of the big toe area in our previous test with our POV picture, but we went ahead and measured it. At 80.6 mm, we're thrilled to confirm that it's more spacious in the big toe area than many other daily trainers on the market, although don't expect it to be fit an Altra!
Glycerin GTS 21 | 80.6 mm |
Average | 78.0 mm |
Tongue: gusset type
Unfortunately, our tests revealed that the Glycerin features a non-gusseted tongue, which we think is a notable miss.
We are convinced that incorporating a semi-gusseted tongue would significantly improve both the ride and feel of the shoe, especially considering the small price hike from its predecessor.
Glycerin GTS 21 | None |
Comfort
Tongue padding
The tongue of the Glycerin GTS 21 is well-cushioned, featuring a plush, pillow-like main foam surrounded by a slimmer layer.
The lacing system is straightforward and functional, exactly what you'd expect from a daily trainer, free from any unnecessary additions or complicated designs.
We measured the padding at an impressive 11.5 mm! While we think this might be a bit excessive for some and could be used to shed some weight, we can confirm that it offers exceptional comfort.
Glycerin GTS 21 | 11.5 mm |
Average | 5.6 mm |
Heel tab
The Glycerin GTS 21 does not feature a heel tab, consistent with most other Brooks running shoes.
Glycerin GTS 21 | None |
Removable insole
We found that the insole is not fixed to the last, which makes it simple to exchange it with a third-party footbed.
Glycerin GTS 21 | Yes |
Misc
Reflective elements
It came as a letdown to find out that the Glycerin 21 GTS lacks any reflective elements, much like its non-GTS counterpart. We are convinced that incorporating reflective details could significantly benefit runners who prefer late-evening or early-morning runs.
Glycerin GTS 21 | No |