Brooks Glycerin 14 vs. Brooks Glycerin 15 review

Brooks Glycerin 14 delivers a plush, comfortable, and smooth ride with a little bit of stability and a secure fit. Brooks Glycerin 15 sports an updated upper that should increase comfort.

The Brooks Glycerin 15 is the updated version of the Brooks Glycerin 14, which is a premium neutral cushioning running shoe for runners who do not need much support and stability.

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For a long time, the Brooks Glycerin came with broad stitched-on overlays around the midfoot that provided a secure fit.

This is still the case for the Brooks Glycerin 14 The preceding link takes you to Amazon.com, but starting from the Brooks Glycerin 15, these supportive overlays have been dropped and replaced by 3D Stretch Print overlays around the midfoot.

While the no-sew overlays around the midfoot of the Brooks Glycerin 15 The preceding link takes you to Amazon.com are plentiful, they are less secure and supportive than the broad stitched-on overlays around the midfoot of the Brooks Glycerin 14.

However, the Brooks Glycerin 15 might increase comfort in terms of feeling less constrictive.

The Brooks Glycerin 15 also has 3D Print overlays that run parallel to the midsole and have been arranged differently than on the Brooks Glycerin 14, which also has such overlays.

These overlays should provide runners with a more custom fit just like the ones on the Brooks Glycerin 14 do.

Both the Brooks Glycerin 14 and the Brooks Glycerin 15 come with a stitched-on toecap that should increase the durability of the running shoes at the front.

The back of the running shoes look somewhat similar so should provide a similar amount of support in that region.

All in all, the upper of the Brooks Glycerin 15 looks fresh and modern. However, the move to an almost completely seamless upper might make it a bit less supportive and durable than the Brooks Glycerin 14.

The Brooks Glycerin is known to deliver a very soft ride. This is mainly due to the fact that it makes use of a midsole that delivers about 20% more cushioning than the standard midsole used by other Brooks running shoes.

Both the Brooks Glycerin 14 and the Brooks Glycerin 15 make use of the same type of midsole material that delivers lots of cushioning, so both are expected to deliver an above average amount of cushioning and a soft ride.

This is corroborated by running shoe lab tests results, which show that both running shoes are very cushy for both men and women with minor differences between the amount of heel and forefoot cushioning.

The Brooks Glycerin 14 comes with one main layer of foam that more or less functions in its entirety like a crash pad, because it is so well segmented.

While the construction and look of the midsole has changed in the Brooks Glycerin 15, the Brooks Glycerin 15 still has one main layer of foam like the Brooks Glycerin 14, and the separation is still present although in a different form.

Both running shoes provide full ground contact, so you should be able to get a smooth and stable ride from both, despite them not being stability running shoes.

According to running shoe lab tests, they both provide an above average amount of stability, with the Brooks Glycerin 15 being placed just a tiny bit higher on the scale than the Brooks Glycerin 14.

They do not come with devices to control pronation, so they do not deliver as much stability and support as stability running shoes, but then again, they are meant to be worn by neutral runners who do not need such support.

The rubber outsole of the Brooks Glycerin 15 looks slightly different than that of the Brooks Glycerin 14 but still displays a good amount of separation to disperse shock.

The rubber pods seem to be a bit more plentiful under the Brooks Glycerin 14, and the Brooks Glycerin 14 also has more rubber directly under the midfoot.

The flex grooves also run differently in the Brooks Glycerin 15; they are straighter in the Brooks Glycerin 14, which provides an average amount of flexibility, according to running shoe lab tests. Overall, the Brooks Glycerin 14 comes out being a bit more flexible than the Brooks Glycerin 15.

The women's version of the Brooks Glycerin 14 weighs approximately 8.9 oz (252 grams), and the Brooks Glycerin 15 for women weighs 8.8 oz (249 grams).

The men's versions of the shoes weigh 10.7 oz (303 grams) and 10.7 oz (303 grams), respectively, so there is no difference in weight between the two running shoes.

The Brooks Glycerin 14 delivers a very soft and smooth ride with an average amount of flexibility and stability. It is a good running shoe for neutral runners who are looking for a plush ride.

The Brooks Glycerin 15 has changed enough compared to the Brooks Glycerin 14 to give runners a different feel, especially in the upper.

So if you are used to running in the Brooks Glycerin 14, you might want to try on the Brooks Glycerin 15 to see if you like how they feel before you decide to choose it.

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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