Brooks Adrenaline GTS 15 vs. Brooks Glycerin 12 review

Brooks Adrenalince GTS 15 provides lots of stability and support with cushioning that is not too soft or too firm. Brooks Glycerin 12 delivers a very soft ride with a close-to-foot feel...

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The Brooks Adrenaline GTS 15 and the Brooks Glycerin 12 are two entirely different types of running shoes with the Brooks Adrenaline GTS 15 meant to provide support and the Brooks Glycerin 12 cushioning.

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The Brooks Adrenaline GTS 15 and the Brooks Glycerin 12 have a very similar upper in that both consist of mostly no-sew overlays with stitched on pieces at the front and at the back of the shoes.

So both running shoes were built with comfort in mind.

However, the overlays on the Brooks Glycerin 12 have been printed on, making them more precise in providing you a closer-to-foot feel than the Brooks Adrenaline GTS 15.

But when it comes to the amount of support provided by either upper, they both provide enough support where you would need it most, which is typically around the midfoot.

However, the Brooks Glycerin 12 has broad ovelays on both sides of the midfoot, while the Brooks Adrenaline GTS 15 only has wide overlays on the medial side of the shoe where overpronators tend to need the most support.

Where the Brooks Glycerin 12 and the Brooks Adrenaline GTS 15 differ a lot is in the midsole. First off, the midsole of the Brooks Glycerin 12 consists of Super DNA cushioning, which is 25% softer than the standard BioMoGo DNA found in the Brooks Adrenaline GTS 15.

Therefore, when you compare the amount of cushioning in both running shoes, the Brooks Glycerin 12 will turn out to be almost twice as soft as the Brooks Adrenaline GTS 15.

But because the Brooks Adrenaline GTS 15 is geared towards providing stability and support to overpronators, rather than cushioning, the type of cushioning it provides is not too firm or too soft, but rather just right for overpronators.

Another big difference in the midsole is that the Brooks Adrenaline GTS 15 implements a device to control overpronation while the Brooks Glycerin 12 does not.

The device to implement pronation control in the Brooks Adrenaline GTS 15 includes a post of firmer foam on the medial side of the shoe to stop your foot from rolling too far inward, and a crash pad that runs along the entire length of the midsole on the lateral side of the shoe.

The crash pad should not only soften your landings but also provide you with a smoother transition from heel-strike to toe-off.

This smooth transition is also provided by the Brooks Glycerin 12, since it provides full ground contact under the entire shoe, whereas the Brooks Adrenaline GTS 15 has a midfoot shank on the medial side of the midfoot preventing full ground contact there.

However, both running shoes are well-segmented in their outsoles to provide good shock absorption and dissipation. The Brooks Glycerin 12 takes this a step further by having three zones in its outsole to distribute the pressure.

In addition, unlike the Brooks Adrenaline GTS 15, the Brooks Glycerin 12 has a rounded heel to take pressure off joints and give you a better alignment. However, this would not be a huge advantage if you are not a heel-striker.

As far as flexibility goes, running shoe lab tests have shown that the Brooks Adrenaline GTS 15 is a little bit more flexible than the Brooks Glycerin 12 for both men and women, but more so for men than for women.

The women's version of the Brooks Adrenaline GTS 15 weighs approximately 9.3 oz (264 grams) and the Brooks Glycerin 12 weighs about 8.7 oz (247 grams). The men's version of the Brooks Adrenaline GTS 15 weighs about 11.3 oz (320 grams), and the Brooks Glycerin 12 for men weighs 11.0 oz (312 grams).

Making a choice between the Brooks Adrenaline GTS 15 and the Brooks Glycerin 12 is pretty straightforward. If you are an overpronator who requires heavy-duty stability and support, then the Brooks Adrenaline GTS 15 is the way to go.

And if you are a neutral runner looking for a very comfortable and soft ride from a running shoe that can handle heavy runners, then the Brooks Glycerin 12 would be the one to look into.

Note: The weight of a running shoe depends on the size of the running shoe, so any weights mentioned in this review may differ from the weight of the running shoe you choose to wear. Running shoes of the same size were compared for this review.

The two links above will take you to Amazon.com where you can read more about the running shoes.


This review falls under: Brooks

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