Brooks

Glycerin StealthFit 21 (120410)

Brooks Glycerin StealthFit 21 (120410)

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Overall

#197 in

Road Running Shoes

according to Reddit Icon Reddit

Sentiment score62% positive
16
4
6

Top Pros

Top Cons

Last updated: Jul 2, 2026

Reddit Reviews

Reddit Iconjoshracer
4 months ago

Trail running to road running recommendations. First off I'm really new to running but I have enjoyed trail running especially in my Asics Gel-trabuco 13, with no foot pain or leg pain, I also use them to hike and they've been a great all rounder. Unfortunately the trails in the UK have been battered with bad weather and it's just not enjoyable on them at the moment so I'm trying road running. A couple of years ago I bought some Brooks glycerine stealthfit 21, they were recommended for heavier runners, which I was (140+kg) and they seemed to help but never really enjoyable, that's why I changed to trail with the Asics. I've tried the Brooks again but they aren't very enjoyable and I get a bit of foot and knee pain. Over the weekend I took the Gel-trabuco 13's on the road for two 5k runs and no foot and knee pain, so I'm leaning towards getting new road shoes and after recommendations like the Gel-trabuco 13. I'm now 104kg with a goal of 100kg for now and reevaluate once I get to my goal on what I want my final goal to be. Having a look online it seems to be between the Asics GT-2000 14 or Asics Gel-kayano 32. Just wondering if anybody's had any experience with either and a heavier weight on them? There is nowhere local (within 1hr) to try them on or have a fitting so unfortunately I'll have to do it online.

Reddit IconSparky_Miller
3 months ago

They've been soft for me, but agree with the comments on instability and the thin tongue. Right now these are my only shoes, since I bought the Glycerin 21 stealth fits for long slow runs and hate them. Ive Been wearing these on long runs (15-25mi) at about a 10 minute mile pace. Not at all what they're meant for but have served me well so far. Im used to the instability at this point but when I first got them I thought I was going to roll and ankle with each step.

Reddit IconAppropriateFan2864
7 months ago

For Brooks, I would also recommend checking out their [Restart program](https://restart.brooksrunning.com/) which is basically like an outlet offering shoes at a really good discount. They will tell you if the shoes are in brand new condition or gently used.. I believe these are the shoes that get returned as they have a very generous return policy. Last year, I got my Glycerin 21 shoes for $75 in brand new condition :)

Reddit IconBarkingAxe
7 months ago

Ahh my b. I would also recommend brooks glycerin 21. I like them as well. I know brooks has more cushiony shoes tho.

Reddit Iconbillsbillsbilled
6 months ago

I’m a big fan of the brooks glycerin and glycerin max. The max has more cushioning but the regular glycerin is also quite cushioned. Both are super comfy imo and have helped me build up miles as a beginner

6 months ago

No I’ve liked both. I actually bought the glycerin 21 without much high hopes with it on sale thinking I’d much prefer the Nike’s and saucony I got at the same time. I continually was reaching for the glycerin over those and when I saw the glycerin max on sale I decided to give them a try. Really like them I don’t think you’d go wrong with either

6 months ago

I have had the the brooks glycerin 21 and the brooks glycerin max and I have thoroughly enjoyed both. Got the max thinking the 21’s were almost done since they were at 400 miles but they’ve continued to serve me well

Reddit Iconbristolfarms
10 months ago

i have 3! brooks glycerin 18, 21, and then a pair of new balance 1080s :) i only road run but i kind of wish i had trail runners… i just need to make it out to nearby trails more.

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