Brooks Women's Glycerin GTS 21 Running Shoes

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About This Item

Design:

  • New, engineered warp knit upper is breathable and allows for a flexible, accommodating fit while staying soft against your foot
  • GuideRails holistic support system supports your body in its natural motion path while keeping excess movement in check
  • Made with recycled materials equivalent to 5 plastic water bottles

In-Shoe Comfort:

  • Additional 2mm of DNA LOFT v3 midsole for a plush ride
  • Super-soft, nitrogen-infused DNA LOFT v3 cushioning is optimized to be lightweight, responsive, and durable for plush comfort

Durability & Traction:

  • New RoadTack rubber includes recycled silica and is lightweight and durable

Additional Details:

  • Weight: 8.9 oz
  • Midsole Drop: 10mm
  • Brand : Brooks
  • Country of Origin : Imported
  • Web ID: 23BROWGLYCRNGTS21FTW
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Best UseRunning
Running Shoe SupportStability
Running Shoe CushioningMost Cushioning
Midsole Drop10mm
Footwear HeightAnkle
Footwear ClosureLace
UpperEngineered warp knit
MidsoleDNA LOFT v3
OutsoleRoadTack rubber
Weight8.9 oz
GenderWomen's

REVIEWS

4.3

90%

Recommended

551 Reviews

Images

Glycerin Comfort With Afo Braces

I purchased two pairs of the Glycerin 21 style in Spring 2025 to supplement my Brooks Ghost 15 shoes, which are no longer available. I wear AFO braces and have found the Glycerin to offer slightly more comfort in the heel because of the outer heel style and perhaps a bit more slope of the sole, heel to toe, than the Ghost. The Glycerin seems slightly more snug across the toe box than the Ghost, although not enough to be uncomfortable. I generally order from the company website because the braces require a size 10 wide and I like color and design choices.

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LanaD

Best pair of Brooks shoes I have purchased. I walk 5 miles daily in 1 stent and have owned numerous pair of Brooks this is my 1st pair of glycerin and love them.

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MinetteG

I purchased these because for some reason the 20's were discontinued? They don't fit as well as in they are tighter and for some reason shorter? I will never use them for long distance or prolonged usage. I will keep them as an emergency backup. But would not purchase them again. Still trying to find a replacement for the 20's

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ANAC

I love them! I have been running in Brooks for some time and these feel like they have the right amount of cushion without feeling like you will twist your ankle. I got them for my first Hyrox and they did great - only thing is that if you do not tie them up good, they slip on the sled pushes. For running, they are great!

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Great Running Shoe

My knees have stopped bothering me when I run (I waited too long to get a new shoe). Very nice support. Comfortable. Wish they were a bit lighter, I have been using Brooks running shoes for years.

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