In my decades-long writing and editing career, I’ve tried a slew of shoes. And as a newish runner, many of those have been sneakers. I practically sprinted at the chance to try Brooks’ Glycerin Flex to see if they’re worth the hype.
Cons
- Not the most stable or supportive
- Segmented footbed may not be ideal for new runners
| Sizes | 5-12 |
| Heel-to-Toe Drop | 6 mm |
| Weight | 8 oz |
| Widths | Regular |
As a certified Brooks sneaker fan—the Adrenaline GTS are my go-to for long walks and runs—learning the logistics of how these new kicks came to be made me all the more excited. The brand spent years analyzing its footbed to best create a shoe that moves with your foot, no matter your foot type. Its unique segmented sole and footbed mean that your foot, not the shoe, guides each stride.
I asked Brooks how long they’ve been working on these kicks, and it turns out the Glycerin Flex is the culmination of more than a decade of work. A brand spokesperson said that designers looked into how runners, specifically, want to feel more connected to their run without foregoing protection and support. Biomechanics research, wear testing, and past projects led to the style. Here are my honest thoughts on the final product.
Brooks Glycerin Flex: The Specs
These running shoes boast a specific midsole with a flexible make focused on letting the foot lead, allowing the shoe to adapt. Though they feature ample cushioning, they feel fairly stable. Brooks made these shoes so runners could feel the ground beneath their feet, without sacrificing cushion—and they delivered.
How I tested
These brand-new kicks (newly launched!) saw me through upwards of 50 miles’ worth of runs and walks on pavement, concrete, and the treadmill. I made sure to wear various types of socks to see how they felt with each type (specifically walking socks and running socks). I also wore them in both rain and sun to see how the grip performed.
What I liked
As is the case with most Brooks shoes, the Glycerin Flex have a lot going for them. These shoes boast major traction and a springy feel with every step without being overly cushioned. They also look super cool. A common conundrum I find with Brooks sneakers is that the shoelaces never seem long enough. I found these to be slightly longer than others (or maybe it’s just the way the upper is constructed), making it easier to tie a secure knot.
What I didn’t like
These are not nearly as supportive as my go-to Adrenaline GTS 25 or my other faves, the Ghost 17, and the segmented footbed may not be suitable for new runners (there’s a reason I didn’t list these as the best running shoe for beginners). That said, for a more experienced walker or runner, they absolutely offer enough support to see you through many miles. I just would ensure you have your form squared away before lacing these up to avoid potential injury.
The bottom line
The Brooks Glycerin Flex earned itself a permanent spot in my running sneaker rotation, with the caveat that I won’t be wearing them for every run. The segmented footbed is not ideal for beginner runners, but may be more suitable for seasoned medalists. I love how comfortable these are, and they offer great traction. I think they are well worth the money!
SHOP BROOKS GLYCERIN FLEX NOW
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