Brooks Glycerin 20 - Women's Review

With a 10mm drop, reconfigured DNA Loft, a lighter-weight upper, and more sizes and features than ever, the newest version of the Brooks Glycerin hit the market with the staying power of prior models but with even more lovable functionality.

Performance Comparison

Cushioning and Landing Comfort

Brooks touts the Glycerin 20 as “the final word on comfort,” and this is a marketing statement that our team of testers happens to agree with. The Glycerin takes a traditional running shoe shape and updates it to create prime comfort. The highly engineered materials are soft to the touch but strong and stabilizing.

The Glycerin 20 doesn't have a sole stacked with softness, nor does it feel like it is encasing your foot in cushioning like some of the more maximalist options on the market. It provides just as much landing comfort as these plusher options, but without all of the bulk. This is one of the main things we appreciate about the landing comfort of this shoe.

The underfoot cushion is springy and protective but in a natural-feeling way. The 360-degree softness and durable cushion make for a shoe that is appropriate for marathon mileage but lends itself well to shorter, comfortable jaunts as well. The Glycerin 20 has one of the most comfortable landing platforms and overall feel of all of the road running shoes in our lineup.

Responsiveness

The midsole and outsole designs of the Glycerin 20 have been reconfigured, leading to a more responsive shoe overall. It isn't the most responsive shoe in our lineup, but it truly gets the job done. Brooks updated their DNA Loft by infusing nitrogen, which is a crucial component in the lightness and energy return of their new designs. Called DNA Loft v3, this material also creates supreme comfort, which is not the most common in shoes with strong responsiveness.

Brooks also updated the width of the midsole and outsole to create a larger launchpad for quicker leg turnover. The customizable fit and breadth of sizes available help ensure that the Glycerin 20 hugs the contours of your foot. This is especially important when assessing a shoe's responsiveness because an ill-fitting shoe is likely to impede your natural stride patterns.

Stability

When the Glycerin 20 launched, Brooks added an element that we hadn't seen before — you can choose to buy a neutrally-supportive Glycerin or one that offers structural support for lateral stability. This, in addition to their other customization options, is a huge reason why the Glycerin is one of our top recommendations.

The standard Glycerin is a neutral shoe, which is the version that we tested. Since it boasts a classic running shoe shape and strong structure, it provides more stability than many of the more responsive shoes. The improved body gives a snug fit that aids in overall stability. One of our favorite things about running in the updated Glycerin is that it provides the stability we desire in a long-distance shoe but is light and springy enough to promote quicker leg turnover. Since the Glycerin is available with customizable options, there is likely a version that provides the stability you desire.

Upper Comfort

Much like its namesake hints, the Glycerin 20 is incredibly smooth and soft, which is part of why it scored so well in this metric. From its lace bed to its overall fit, the Glycerin quickly became the running shoe we wanted to reach for on the daily. We purchased and tested the medium-width version, which fit our tester's average-width feet perfectly. Brooks also manufactures a narrow and a wide version to comfortably accommodate a wider range of foot shapes.

The toe box of the Glycerin 20 is not super wide, but it provides enough space for toes to splay and work a bit while running. The perfect amount of toe box space combined with the snug-fitting yet forgiving upper is part of what makes this shoe such a versatile and comfortable runner.

Unlike in some shoes, where this combination of features can feel clown-like, the Glycerin marries everything to create an optimal running shoe. The laces and lace bed are made of soft yet sturdy materials that stay put while in motion. The well-cushioned and placed tongue also adds to the overall comfort. If we had to choose one comfortable shoe to wear day in and day out, the Glycerin would be on our short list based on its versatility and comfort.

Weight

The Glycerin 20 feels significantly lighter than the prior model. The Glycerin 19 had a firmer, more solid outsole without any of the nitrogen-infused pockets that the 20 has. The upper of the latest version is more breathable and feels lighter on the feet while running.

Interestingly, though, the weight of the Glycerin 20 is minutely more than the last model, but both are lighter than the Glycerin 18. Because of how well the weight is distributed, this version of the Glycerin feels lighter than ever. Ultimately, the Glycerin earned a lower score in this metric, but don't let the weight deter you. We truly think this shoe is worth testing out, especially if you want something to wear for both short and long runs.

Should You Buy the Brooks Glycerin 20?

In a word, yes, you should buy the Glycerin 20, especially now that Brooks has incorporated a stability version and their StealthFit profile. With enough cushion for protection and comfort, but enough bounce to get moving quickly, the Glycerin is a shoe that is appropriate for all types of runs. If you are looking to purchase one pair of durable shoes to wear under all conditions, the Glycerin is a worthy purchase. Brooks makes durable shoes that only seem to get more comfortable as time goes on.

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