Brooks

Glycerin StealthFit 21 (120410)

Brooks Glycerin StealthFit 21 (120410)

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Overall

#179 in

Road Running Shoes

according to Reddit Icon Reddit

Sentiment score65% positive
11
3
3

Top Pros

Top Cons

Last updated: May 23, 2026

Reddit Reviews

Reddit Iconjoshracer
3 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
about 2 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 Iconcisco1971m
4 months ago

I’ve never had the glycerin max, but I have had the glycerin 19, 20 and 21 they all worked out great for me

4 months ago

I’ve never had the glycerin max, but I have had the glycerin 19, 20 and 21 they all worked out great for me

4 months ago

I’ve never had the glycerin max, but I have had the glycerin 19, 20 and 21 they all worked out great for me

Reddit IconGolfing_Panda
4 months ago

Brooks Glycerin 22 or 24, or Brooks Glycerin Max are great options Max more cusion and standard glycerin great balance of comfort and stability.

Reddit Iconjohnny_fives_555
8 months ago

Sales + runrepeat. Needs to be at least half off. If I’m being honest more like 66%+ off. I’m running in speed 2s, Boston 11s, triumph 19, and glycerin 20s because they were on sale.

Reddit Iconjosior
8 months ago

The test seems accurate to what I've seen with the shoes I have (Mizuno Wave Sky 8 and Brooks Glycerin 20).

Reddit Iconlutewhine
11 months ago

My shoe purchases this year: Nike Vomero 16 (£59.99) Brooks Glycerin 20 (£73.80) Mizuno Wave Sky 6 (£54) I haven’t paid full-price for a pair of running shoes since Vomero 1 came out, and that was only because the store did an excellent job with gait analysis that helped cure longstanding shin issues. Never buy budget shoes - buy great shoes at good prices from previous seasons.

Reddit IconPuzzleheaded_Bat7588

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