Brooks Glycerin 21 Review: Soft and Smooth Running Shoes

Last Updated: Feburary 29, 2024 | Author: Jake Thompson


Diving into the world of running shoes can be as thrilling as the run itself. If you're on the lookout for the next pair to lace up, the Brooks Glycerin 21 review is where your search might just end. Known for its plush comfort and stellar support, this shoe promises to take your running experience to new heights.

But what makes it stand out from the rest? We've got the scoop on its latest features, performance, and how it stacks up against the competition. So, lace up, and let's get moving. Read on to find out if the Brooks Glycerin 21 is the running companion you've been waiting for!

Brooks Glycerin 21

Table of Content:

  1. Key Takeaways
  2. Table: Brooks Glycerin 21 Review
  3. Brooks Glycerin 21 Overview
  4. Unveiling the Comfort: Max-Cushioned Support
  5. Performance on the Road: Stability and Traction
  6. Dive into the Technology: DNA Loft V3 Foam
  7. Fit and Feel: Lightweight Design and Drop
  8. Pros and Cons: A Balanced Perspective
  9. Technology-Driven Design Elements
  10. Upper Construction
  11. Midsole & Outsole Features
  12. Final Verdict
  13. Frequently Asked Questions

Key Takeaways

  • - The Brooks Glycerin 21 features DNA Loft V3 foam for enhanced comfort and responsiveness during runs.
  • - Designed for wide range of runners, it offers stability and support for various running conditions, not focusing on speed.
  • - Its lightweight design and soft cushioning are suitable for both short runs and marathons.
  • - The shoe combines technology-driven design elements with a focus on comfort.

Table: Brooks Glycerin 21 Review

Feature Details
Midsole Technology DNA Loft v3, nitrogen-infused foam for a plush, comfortable energetic ride.
Upper Design Luxuriously padded with warp knitted upper.
Stability Very stable, extra room in the forefoot and midfoot to help keep feet centered.
Flexibility More flexible than its predecessor, with a redesigned outsole that's segmented for flexibility.
Weight Men's: 9.8oz / 277.8g, Women's: 9.4oz / 266.5g.
Drop 10 mm
Stack Height 28 mm
Recommended For Daily training, long-distance racing, and ultra-distance racing.
Sustainability Features recycled materials in the new upper and midsole.


Brooks Glycerin 21 Overview

Brooks Glycerin 21

I've run a lot of marathons and tried many different running shoes over the years. One pair that stands out for me from Brooks' brand's Glycerin 21's version. It is better than the previous year's version 20. Although the Glycerin GTS version competes equally as they've added something new to the cushioning that makes running feel like you're bouncing on clouds. This is super important because it makes running more comfortable and helps you avoid getting tired too quickly.

For me, a big deal is how light these shoes are, making them perfect for long runs and races. I've worn them in both situations and they've been great. They never make my feet feel sluggish and heavy, even after lots of miles. And, even though I tend to roll my feet inwards when I run (a lot of us do), these shoes help keep everything aligned, which is a big plus.

Related: Brooks Ghost 15 Review


Unveiling the Comfort: Max-Cushioned Support

Brooks Glycerin 21

Diving into what makes my running shoes feel like running on clouds, I found out it's all about this super soft foam inside them. This foam is like a magic cushion that makes every step feel soft and bouncy. It is great because it means my knees and muscles don't get as sore.

Even though I've spent a lot of time helping people find the perfect sports gear, I'm always amazed at how light these shoes feel. They have this perfect balance that feels just right, whether you're someone who runs a little off to the side or straight on.

Having worn these shoes in several long races, I noticed they help keep my feet feeling good the whole way. There was this one marathon, under the hot sun and through the city streets, where I truly felt the difference. My feet could have been sore afterward, but thanks to these shoes, they weren't. They're not just about running; they make a big difference for anyone standing or moving a lot during the day.

Related: Brooks Glycerin 20 Review


Performance on the Road: Stability and Traction

Brooks Glycerin 21

After trying out many different shoes, I pay special attention to how well they work on different types of ground. I've found a pair of running shoes that aren't just super comfortable but also great for any kind of run. They work well whether I'm going for a quick run around the block or preparing for a long marathon. Here's why I love them so much:

  • - Good for all runs: Feel stable and comfortable whether I'm just going for a short run or if I'm training for a marathon. This means no matter what kind of run I'm planning, I know these shoes will work great.
  • - Great on any new roadtack: Keep my feet comfortable and they don't slip. This makes my runs smoother and more enjoyable.
  • - Perfect for many runners: Supportive, even for runners like me who tend to roll their feet inwards a bit when we run. But they're also flexible, so they don't feel too stiff.

Related: Brooks Adrenaline GTS 22 Review


Dive into the Technology: DNA Loft V3 Foam

When looking for the perfect running shoes, I've tried out a lot of different kinds. One of my favorites has a special kind of cushioning that's soft and comfortable, especially for long runs. This cushioning, let's call it 'super soft foam,' is the latest version and it's even better than the ones before. It's great because it absorbs the shock when my heel and forefoot hits the ground, but it also lets me keep moving quickly and easily.

I was really surprised that even though it feels so cushy and soft, the shoe doesn't feel heavy at all.

I remember one marathon I ran where these shoes made a difference. Around mile 20, when my feet usually start to feel tired and sore, I noticed that they still felt pretty good. It was like running on clouds, but I could still move fast and didn't feel like I was dragging my feet.

That's when I knew how special this 'super soft foam' is. It's not just about making the shoe soft; it's about keeping it light and responsive too. This balance is what makes it stand out to me and why I recommend it to anyone looking for good running shoes.

Related: Brooks Hyperion Tempo Review


Fit and Feel: Lightweight Design and Drop

Exploring the comfort and design of this running shoe, I noticed how its lightness and shape help improve my running. When I choose shoes for running long distances or even short sprints, I look for ones that won't weigh me down and let me move freely. This shoe, with its smart design, does just that.

  • - Light and Easy to Wear: Weighing around 9.8 oz for men and 9.4 oz for women, it makes long runs feel less tiring.
  • - Increase in Stack Height : The shoe lifts your heel collar a bit, with 10 mm drop, which I found makes my feet more comfortable, especially on longer runs. It feels like it's easier on my Achilles tendon, which is a big plus.
  • - Comfort and Stability: Soft cushioning makes every step feel plush, but it also keeps my feet stable. This is super helpful since my feet tend to roll inward when I run. It's like the shoe is giving me a comfy, stable hug.

From my experience running marathons and managing the biggest store for sports gear, I've tried a lot of shoes. But I keep coming back to this one, especially for those long everyday training. One time, during a particularly grueling marathon, this shoe stood out.

Around mile 20, when my feet usually start to feel every little rock and ripple in the road, these shoes kept me going strong. It made a huge difference, not just in finishing the race but in how I felt afterward.

Pros and Cons: A Balanced Perspective

When I look at running shoes, I always think about what they can do for different kinds of runners. One pair I've run a lot of miles in has some really good points, but also a couple of things to think about. The best part about these shoes is how soft and comfortable they feel, especially when I'm out for a long run. I remember one time, I was training for a marathon and my feet were feeling great, even after 20 miles, thanks to that cushioning.

They're also great for runners like me who tend to roll their feet too much when we run. This shoe keeps my feet steady and helps me avoid getting hurt. Plus, they're not heavy, so my legs don't get tired from picking up my feet mile after mile.

But, they're not perfect for every run. When I try to run fast, like during a short race or a speed workout, they don't feel as quick on my feet. And for runners who are lighter or like a shoe that doesn't have a lot of cushions, these mightn't be the best choice.

Technology-Driven Design Elements

After putting the Glycerin 21 to the test through many running routes and daily training, I've noticed that this shoe stands out because of how it's made. The top part, the middle cushioning, and the bottom grip work together perfectly to make sure my feet are comfortable, last a long time and help me run better. These cool features make the shoe look good and feel even better on my runs.

I remember during one long marathon, around mile 20, when my feet usually started to feel sore, these shoes made a huge difference. They helped me absorb the impact of every step I took, making it feel like I was running on clouds. This is a big step up from other shoes I've tried, which just goes to show how much thought and effort I put into making them.

Upper Construction

When looking at the top part of the running shoe, I noticed it's made with a special kind of fabric and some strong materials added on to make sure the shoe breathes well and lasts a long time. This combination is great because it fits snugly on different foot shapes, which means a lot of runners, including me, find it super comfortable. Plus, these materials help make the shoe light, which is a big deal when you're running long distances.

  • - The fabric used on top lets air flow in and out, keeping my feet cool and sweat-free.
  • - The added strong materials make sure the shoe doesn't wear out quickly, especially in places that usually get damaged first.
  • - The shoe feels comfy because there's extra padding in the collar and tongue, and you can pick from different widths to find the perfect fit.

I've run countless marathons and through my store, helped many runner's find their ideal gear. This approach to designing the upper part of the shoe shows a commitment to making a shoe that's not only comfortable but also supports and lasts. I've personally found this design helpful during my training runs and marathons, where staying comfortable and avoiding blisters is crucial to performing my best.

Midsole & Outsole Features

Brooks Glycerin 21

After checking out how the top part of the shoe makes it comfy and long-lasting, it's really important to look at what makes the middle and bottom parts of the shoe special. These parts are made with some cool tech that steps up how the shoe performs.

The middle part has this super soft foam that's amazing at soaking up the shock when your wide foot hits the ground. This is a game-changer for me, especially on those long runs where my feet start to feel it. It's like running on clouds, but you still feel the ground enough to keep your pace up.

Plus, there are these special sections in the shoe that help with a smooth step and keep you stable. This is a big deal for someone like me who tends to roll their feet inwards when I run.

The bottom part of the shoe is made with a mix of two kinds of rubber, making it flexible, tough, and grippy. I've run on all sorts of surfaces, and these shoes have never let me down. They bend with my feet in a natural way, and I've never slipped, even on tricky trails.

All these details might sound a bit much, but they make a difference. I've run marathons, and these shoes have been with me through thick and thin. Whether I'm hitting the pavement in the city or taking on a rugged trail, I know my feet are in good hands. It's not just about wearing something that looks cool; it's about having the right gear that you can count on.

Final Verdict

In my Brooks Glycerin 21 Review, I've found these shoes to be the best overall choice for runners. They offer incredible comfort and support with their DNA Loft V3 foam, making each run feel like you're bouncing on clouds. These shoes are lightweight, aid in long-distance runs, and provide great stability for various foot types, including those that roll inward.

Whether it's for a quick sprint or a marathon, the Brooks Glycerin 21 ensures your feet stay comfortable and well-supported. It's a top pick for anyone serious about running, combining the best of technology, comfort, and design.


Frequently Asked Questions

1. What makes Brooks shoes a good choice for daily training?

Brooks shoes are known for their durability and energy return, making them a perfect daily trainer. They're designed to support your feet during long runs, providing comfort and reducing fatigue. The traction and underfoot protection ensure a safe and stable run on various surfaces. You can find them at local running stores or a running warehouse, and they're among the best selling running shoes for their reliability and versatility.

2. Why is Glycerin important in running shoes like the Brooks Glycerin model?

Glycerin in Brooks shoes refers to the high-quality cushioning material used to offer superior comfort and energy return. This technology is perfect for recovery runs, as it helps absorb impact, reducing stress on your joints. The cushioning also provides a plush underfoot feeling, enhancing the overall running experience on the road.

3. How do laces and lockdown work together in a running shoe?

In running shoes, laces are crucial for achieving a secure fit, while the lockdown mechanism ensures your foot stays in place without sliding. This combination is important for stability and comfort during runs. Shoes with a good lockdown, like those featuring warp-knit technology, offer a true to size fit that adapts to your foot's shape, preventing blisters and allowing for efficient energy cruiser feel with each step.

4. What is the advantage of Roadtack rubber in the outsole of a running shoe?

Roadtack rubber is a material used in the outsoles of running shoes to provide excellent traction and durability. It ensures that you have a stable grip on both wet and dry surfaces, making it safer to run in different weather conditions. Additionally, the Roadtack rubber helps to protect the shoe from wear and tear, extending its life and making it a reliable workhorse for your runs.

5. How does the geometry of a running shoe affect a runner gait?

The geometry of a running shoe refers to its shape, sole design, and overall structure, which can significantly impact your gait, or the way you walk and run. A well-designed shoe will support your natural gait, promoting a smooth transition from heel-striking with a wide toe box. This can help reduce the risk of injury and improve your running efficiency. Features like a gusseted tongue and specific midsole geometry can also enhance comfort and fit, contributing to a better running experience.




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Author Box
Jake Thompson

Jake Thompson

I am Jake, a sports enthusiast, love everything about sports, particularly basketball and volleyball. I've played both sports at a local level. Here to share my passion for sports and sports gear experiences with you.