Brooks® Glycerin 21

The Brooks Glycerin 21 release date is on September 18, 2023.

The new Brooks Glycerin 21 will have the following new features and updates.

  • The new Brooks Glycerin 21 will be more of a daily training shoe than a running shoe this time around.
  • The collar will be padded for comfort, and plenty of cushioning for support and comfort.
  • It will be more breathable with more plush cushioning under your feet.
  • There will be new, improved mesh uppers with ample ventilation and contemporary designs and colors.
  • The midsole will be reconfigured for more comfortable and plush underfoot comfort.

Previous Model of the Brooks Glycerin:
The Brooks Glycerin 20 release date was on February 28, 2022.

Latest Version of the Brooks Glycerin


Brooks Glycerin



  • Regarding the new Brooks Glycerine 21, you can look at a price tag (MSRP) of $160.
  • The improved features make the price a bit higher but completely worth it.
  • It would help if you also looked for seasonal discounts and exclusive deals on the new Brooks Glycerin 21.

Arch support and pronation controlArch Support and Pronation Control

  • The Brooks Glycerin 21 has the ideal support features and cushioning for a High Arch Type that will be more plush and soft this time around.
  • The new model also features some excellent characteristics for Neutral Pronation rather.


  • The Brooks Glycerin 21 is a Road Running shoe that is designed for hard and solid surfaces.
  • The design will also lean more towards a general running and training shoe in the new model.
  • I would not recommend the new model for walking on a trail, running, or in wet conditions.


  • You can wear your Brooks Glycerin 21 for training, light running, or just as a casual shoe.
  • Because they are a neutral running shoe for Higher arches, you can also use them for jogging short or long distances.


  • The Brooks Glycerin 21 will be rated to be average when it comes to durability.
  • They will last you very long with proper care and usage in the correct settings.

Fit and SizingFit and Sizing

  • The Brooks Glycerin 21 offers a medium forefoot and heel fit with a snug-fitting sock-like design.
  • However, you can choose between a Narrow, Medium, Wide, or Extra Wide fit option.


  • The Brooks Glycerin 21 will weigh approximately 289grams in the men’s model and 255 grams in the women’s model.
  • The weight of the Glycerin 21 is quite average for a running and training shoe.

Elevation of the Brooks Glycerin 21

Heel HeightHeel Height

  • The heel height is the same for men and women, 22mm.
  • The higher heel in the Brooks Glycerin 21 will be ideal for people with a high arch who are supinating.

Forefoot HeightForefoot Height

  • As for the Forefoot, it is also similar for men and women at 17 mm.
  • The forefoot offers excellent support for a high arch and good underfoot cushioning.

Heel-to-Toe DropHeel-to-Toe Drop

  • I like the heel-to-toe drop because it is not too high or low.
  • The Average 10mm heel-to-toe drop in the Brooks Glycerin 21 has been deemed the best in most running shoes.

Components of the Brooks Glycerin 21


  • The Brooks Glycerin 21 still boasts a high-quality rubber outsole.
  • The tread is improved for better traction on slippery surfaces and better stability.


  • In the midsole of the Brooks Glycerin 21, you will still find a new nitrogen-infused DNA LOFT v3 cushioning.
  • An additional plush cushioning layer is added for better rebound and energy return in the midsole.
  • The cushioning’s underfoot feel will be much more plush and soft in the new model.


  • The uppers still feature a breathable and light-engineered mesh with a sock-like fit.
  • The Engineered mesh, however, will be designed for much better ventilation.
  • There will also be new colors and designs available in the new model.
  • The Collar design of the upper will be padded for a snug and comfortable fit.

Brooks® Glycerin vs. Ghost


Brooks Glycerin 21

About the Author

David Alegeta

David is a long-distance hiker, a writer and an editor whose favorite topics include backpacking and trail running. He is an adventure athlete who covered over 20,000 miles. He frequently speaks to groups about the benefits of proper footwear and has written numerous articles on this subject. He lives in Dallas, Texas with his family.