Brooks Glycerin GTS 20 VS Adrenaline GTS 23: What Should I Buy?

If you’re a runner who needs stability and cushioning from your shoes, you may be trying to decide between two of Brooks’ most popular options – the Glycerin GTS 20 and the Adrenaline GTS 23. Both deliver on stability and have plush cushioning, but they have some distinct differences when it comes to features and performance.

This in-depth comparison outlines everything you need to know to decide which of these flagship stability shoes is the better pick for your needs and running style.

We’ll look at the key specs, technology, fit, cushioning, stability, and real-world performance in areas like walking, running, plantar fasciitis, and all-day wear. Read on to see which Brooks stability shoe takes the lead!

Similarities And Differences Between Brooks Glycerin GTS 20 And Adrenaline GTS 23:

FeatureGlycerin GTS 20Adrenaline GTS 23
Launched In20202023
StabilityVery stableStable
SizingTrue to sizeRuns small, order 0.5 size up
Weight10.5 oz (men’s), 9.4 oz (women’s)10.6 oz (men’s), 9.2 oz (women’s)
CushionHighly cushionedModerately cushioned
OutsoleCarbon rubberSegmented rubber
UpperEngineered mesh3D Fit Print mesh
Retail Price$160$140

Features Comparison:


The Glycerin GTS 20 uses a breathable engineered mesh for the upper, durable carbon rubber for the outsole, and Brooks’ DNA LOFT v3 nitrogen-infused foam for the responsive and soft midsole.


Brooks Adrenaline GTS 23

The Adrenaline GTS 23 features an engineered 3D Fit Print mesh upper for a sock-like fit, segmented rubber outsoles for flexibility and traction, and the DNA LOFT v2 foam midsole which is softer and lighter than v3.

Got it, thanks for the feedback. Here are expanded sections of around 110 words each on durability, fit, stability, and cushioning:


The durable carbon rubber material used in the outsole of the Glycerin GTS 20 appears that it may last slightly longer than the segmented rubber compound of the Adrenaline GTS 23.

The Glycerin’s continuous coverage protects areas that often show quicker wear and tear. However, the engineered 3D Fit Print mesh upper newly introduced on the Adrenaline GTS 23 this year seems more sturdy while still being breathable.

So while the Glycerin may have a modest advantage in outsole durability, the Adrenaline likely evens the score with its reinforced upper that resists tearing or breakdown over high mileage. When weighed equally, these two models seem evenly matched when it comes to overall longevity.


The Glycerin GTS 20 runs true to size for most runners and accommodates medium to slightly wider foot dimensions with its rounded toe box shape.


Brooks Adrenaline GTS 23 Top View

However, the Adrenaline GTS 23 fits nearly a half-size small, so sizing up is recommended. Both models clamp down securely midfoot after lace-up while allowing some wiggle room for toes.

However, Adrenaline’s 3D Fit Print mesh upper takes the lead by offering exceptional breathability and adaptive stretch that provides a true custom, sock-like fit. This makes it the better option for runners who want a personalized, precision feel dialed in around their foot’s exact contours.


The Adrenaline GTS 23 leads the pack when it comes to keeping overpronation under control. It’s GuideRails support system on the midsole is highly effective at preventing excess ankle rolling on heel strike.

This allows even severe overpronators to run comfortably without compensation which can cause pain or injury over time. There is also a firm medial post along the instep side of the shoe for maximum motion control.

While the Glycerin GTS 20 has excellent stability from its midsole structure, it cannot match the precise correction of the GuideRails and medial post built into the Adrenaline GTS 23. Runners who require the highest level of stability would benefit from choosing the Adrenaline over the Glycerin.


The standout feature of the Glycerin GTS 20 is without question its exceptionally plush cushioning. This shoe utilizes maximum stack height in the heel and forefoot to deliver a pillowy soft ride that evenly absorbs shock with each footfall. This helps prevent jarring while allowing feet to feel fresh even after high mileage.

The Adrenaline GTS 23 also implements the latest DNA LOFT foam for responsiveness and comfort underfoot. However, it has a lower profile midsole by design and simply does not match the degree of luxurious softness and shock absorption provided in the plusher Glycerin model. For the epitome of cushioning, Glycerin is the clear winner.

Value for Money:

The Glycerin GTS 20 costs $160, while the Adrenaline GTS 23 comes in at $140. Given the Glycerin still uses the DNA LOFT v3 foam versus the next-gen v2 of the Adrenaline, the lesser price of the Adrenaline makes it a better value stability shoe from Brooks this year. You don’t sacrifice much cushion or support dropping from the Glycerin to the Adrenaline.

Performance Comparision:


For walking and casual use, both models are comfortable choices. The Glycerin may win out slightly thanks to its ultra-plush cushioning that minimizes foot fatigue.

However, the improved breathability and adaptive upper of the Adrenaline is also great for low-impact walking. Overall, most walkers would be happy in either shoe.


The Glycerin and Adrenaline Trade blows when it comes to running performance. What the Glycerin lacks in flexibility, stability, and ground feel, it makes up for in softness and shock absorption for easy miles. The lower, firmer cushioning of the Adrenaline feels faster and more responsive underfoot to pick up the pace, without sacrificing comfort.

Plantar Fasciitis:

The additional midsole padding of the Glycerin helps minimize PF pain with each step. Its softness gently cradles the arches and promotes comfort over long distances.

However, the stability features of the Adrenaline prevent overpronation that can aggravate the plantar fascia ligament. So those needing both cushion and overuse support would especially benefit from the Adrenaline.

All Day Standing:

Waiting tables or working retail means being on your feet for hours on end. Of these two options, plush Glycerin is the clear workhorse thanks to its superior cushioning and shock absorption, keeping feet happy even after double-digit hours every day. The thinner Adrenaline loses its comfort more quickly when standing for prolonged periods.

Final Verdict:

While both deliver on stability and cushioning, the Glycerin GTS 20 takes the lead for its superior plushness underfoot. The DNA LOFT midsole absorbs shock exceptionally well even over long distances, helped by its higher stack height. This makes Glycerin an excellent choice for heavier runners or those logging very high weekly mileages.

However, the Adrenaline GTS 23 puts up strong competition with its dialed-in stability, comfortable cushioning, and very reasonable $140 price tag. So runners who want reliable support without breaking the bank would be wise to choose the well-rounded Adrenaline GTS 23 as a top-value pick.

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