Brooks Glycerin 20 running shoe review

Author: Holly Taylor

Read Time:   |  July 21, 2022

Holly tests out the new Brooks Glycerin 20 – here are her thoughts...


BROOKS Glycerin 20 | £155 | Tester: Holly Taylor

A durable and comfortable long-distance running shoe, the Brooks Glycerin 20 is another solid release

I ran my previous pair of Brooks Glycerin shoes into the ground, so I was absolutely thrilled to receive the new iteration of one of the best women’s running shoes. As I start some tough half marathon training, I’m hoping the Glycerin 20 can live up to its predecessor’s mileage and cushioning.

As well as promising comfort and smoother road running, Brooks’ designers have also made the Glycerin 20 customisable: you can choose whether you want support or a more neutral shoe, select between three different widths and have the option of three different colour ways. I’ve gone for a medium-width neutral shoe in a 6.5, for reference.

Want to know our favourite trainers? Here’s the best women’s running shoes!

Brooks Glycerin 20 technical details

Weight: 258g
Sizes: 3-10
Drop: 10mm

Brooks Glycerin 20 pros:

  • Customisation options
  • A durable road-running shoe
  • Comfortable cushioning

Brooks Glycerin 20 cons:

  • Not cheap
  • Not designed for speed runs

What kind of running is the Brooks Glycerin designed for?

The Glycerin 20, like its previous iterations, is designed as a road shoe. It’s a great option for training long distances, and provides comfort for considerable mileage. It’s not one for hitting the trails, as there are no real lugs to speak of, and it probably won’t be your best option if you’re a speedy runner aiming for a PB: this is more about putting in the hours and pounding the pavements over a long period of time.

Who is the Brooks Glycerin for?

The Glycerin 20 makes for a great beginner’s shoe, with a focus on comfort and durability. If you’re a road runner who only usually owns one or two pairs of trainers at one time, it’s a great investment. At £155 it’s not the most expensive shoe on the market, but it’s on the pricier end for some beginners – you can check out our favourite cheap running shoes if it’s out of your price range.

Want more from Brooks? Check out our review of the Brooks Ghost 14 running shoe.

How does the Brooks Glycerin 20 fit?

I have quite wide feet, and I still found the medium-width fit to be quite roomy: the toe box has a lot of space for movement and you can definitely feel the benefits a few miles in. I’d opt for half a size up from your usual walking shoes, but stick to your usual width as there’s no shortage of space.

Are they comfy?

Undeniably so. As promised, the Glycerin 20 delivers on comfort and cushioning – that’s the real selling point here. The nitrogen-infused DNA LOFT sole is slightly springy and delightfully soft underfoot. I didn’t experience any rubbing or blistering either, even after several test runs.

Brooks Glycerin 20 running review

I took these for their first spin as intended: for a 3-mile road run. I’ve been used to really lightweight shoes recently, so I must admit they felt slightly heavy when I first put them on, but as soon as I started running I was grateful for the added weight in exchange for the sublime comfort of that sole.

There’s also more responsiveness than I’d anticipated: despite the wonderfully soft sole, there’s a definite spring to my take off.

It’s a hot, dry day on the first test run, so I knew I needed to put them to the test in wet weather – not that we have much of that at the moment! My second run is slightly shorter, at just 2 miles, due to the soggy conditions: but I’m impressed with how well the Glycerin 20 hold up in the rain considering their lack of lug. They’re not designed to be trail shoes, but there’s a sense of security on tricky terrain that I wasn’t expecting, and they’re not remotely slippy.

I’m looking forward to testing these on some longer distances, as I can already feel the benefits of the comfortable design after a few miles. They’d make an excellent beginner shoe, and are perfect for half marathon training runs.

Where can I buy the Brooks Glycerin 20?

The Glycerin 20 is available from the Brooks website as well as in selected stores now.

Written by

Holly Taylor

Holly Taylor

Holly Taylor is the digital editor of Women’s Running and co-host of the Women’s Running podcast, where she shares her running journey as well as the inspiring stories of women runners all over the country. She’s never been the sporty type, but running is the first time she’s felt real joy in getting active. She loves talking about running with a community of inclusive and supportive runners, and Women's Running is the perfect space for this. She's currently aiming for a half marathon PB!

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