Brooks Glycerin 21
$$ Mid-rangeTrending Down$180.00
tldr; Plush max cushion. Softer than Ghost, premium feel. Long run comfort.
$180.00 on AmazonSentiment Breakdown
33%Positive
Positive
33%Neutral
55%Negative
12%Based on 546 Reddit opinions
Strengths & Weaknesses
Scores based on sentiment analysis of topic-related comments
Key Features
- THIS WOMEN'S SHOE IS FOR: The Glycerin 21 is perfect for runners seeking super-soft cushioning for supreme comfort. The plush internal fit and soft, stable transitions keep runners surrounded by super-softness. This Brooks Glycerin 21 has been granted the APMA Seal of Acceptance.
- NEUTRAL SUPPORT: Provides neutral support while offering the maximum amount of cushioning. Ideal for road running, cross training, the gym or wherever you might want to take them! Predecessor: Glycerin 20. Look for the Brooks Glycerin GTS 21 for the same style with added support.
- SUPREME SOFTNESS: The ultimate in softness with even more super-soft nitrogen-infused DNA Loft v3 cushioning, optimized to be lightweight, responsive, and durable for plush comfort.
- PLUSH IMPROVED FIT: The plush feel of an internal stretch bootie surrounds your foot and moves and expands with your stride. The newly engineered warp knit upper is breathable and allows for a flexible, accommodating fit while staying soft against the foot.
- SMOOTH, STABLE TRANSITIONS: The broad platform stabilizes your foot and promotes smooth heel-to-toe transitions for a supremely soft on-the-run experience.
- ☁️ Max cushion
- 💎 Premium feel
- 🏃 Long runs
Sentiment Over Time
Historical Price Data
Brooks Glycerin 21
Brooks Glycerin 21
All-time low: $99.95(2025-04)
What Redditors Actually Say
What Redditors Say
Best praise vs top criticism for Brooks Glycerin 21
Best Praise
+13 pts“I had the Glycerin 19’s and while they were never my fun shoe that made me want to get out and run, they were usually the one I picked because they felt best to put miles on. I have the 21’s now and they feel less familiar but better cushioned. I over pronate as well and run in a variety of neutral and stability shoes and I think it’s helped me to mix things up like that. I think it took me around 50 miles to start to really like my Glycerin 19’s, meanwhile I have 100 miles in on my Kayano 30’s and they feel less cushioned and blocky to me. I’m using Kayano for walks now which is good but I just couldn’t love them for running. Could be you have the opposite case with your Brooks.”
r/RunningShoeGeeks
ViewTop Criticism
+8 pts“My OCD is tingling that the right shoe is on the left and the left shoe is on the right lol”
r/RunningShoeGeeks
View13 more quotes available below
Related Products
Frequently Asked Questions
Is the Brooks Glycerin 21 worth buying?
Plush max cushion. Softer than Ghost, premium feel. Long run comfort.
What do Redditors love about the Brooks Glycerin 21?
Redditors highlight: ☁️ Max cushion. 💎 Premium feel. 🏃 Long runs.
What are the downsides of the Brooks Glycerin 21?
Some criticisms include: "My OCD is tingling that the right shoe is on the left and the left shoe is on the right lol..."
How accurate are these ratings?
Our sentiment analysis is approximately 80-85% accurate compared to manual review. Products with more mentions (Brooks Glycerin 21 has 546) tend to have more reliable scores.
546 Reddit opinions analyzed • Last updated 4/4/2026