Brooks Glycerin flex Review

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Michael Vaughan

East Hartford, CT

Men's Shoes > Running

Brooks - Glycerin flex

Summary

In addition to the launch of the glycerin 23, Brooks has also released a new trainer, The Glycerin flex. Flexible support good for different feet and running styles. Durable upper, in the consistent Brooks style and cut.

Posted Feb 13, 2026

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Glycerin flex

4.0/5

(1)

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Pros

The flexible sole.
Plush cushion, but not a marshmallow
Lightweight

Cons

Made for medium arches.
Not available in their GTS version

The Brooks sales reps brought the glycerin 23 and the glycerin flex as demo shrews to our Thursday night running event at our local Fleet Feet store. My coach is scheduled run for the evening was warm up for 2 miles 1 minute of all out Sprint repeat I told us six times and then a cool down.

Felt really good in my sprints, and even better on my recovery afterwards. First Brooks that I've liked.

No issues pushing hard on a 5 mi run with a pair of brand new shoes. In the past other Brooks have had issues with fore foot pad and creating blisters but not even a hotspot with these.

It's called flex for a reason.

Brooks Glycerin flex Review — Brooks sales rep actually twisting the shoe demonstrating the flexibility.

In my search for a new daily trainer, I've tested lots of shoes, And last season the Brooks were uncomfortable on my arch. The softness of the flex and of course the flexibility has seem to alleviate that issue.