If you’re looking for supreme softness and ultimate comfort, the men’s neutral Glycerin 21 running shoe provides an ultra plush ride thanks to even more soft DNA LOFT v3 cushioning than before, plus a new, more streamlined upper that delivers structure and breathability.

59.7 % Recycled materials in the upper
4.1 Plastic bottles diverted from landfill
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Choose the Brooks Glycerin 21 and experience the perfect combination of comfort and performance while running with this neutral all-round running shoe. Go for short or long runs; the Glycerin does it all. This makes it suitable for both beginners and experienced runners. Go for a completely new running experience with this all-round running shoe!
Supreme softness – Comfortable fit – Smooth and stable transitions – Road running
Supreme softness – Improved fit – Smooth, stable transitionsMidsole drop – 10mm  –  Weight 9.8oz/277gs

Cushion – A smooth and floaty-feeling run thanks to plush cushioning designed to help you enjoy and savour your run.

Supreme Softness – Improved Fit – Smooth, Stable Transitions

Glycerin 20 and Glycerin 21 have a shared heritage, but there are some subtle points of differentiation between the two. Here’s how they compare in five key areas:

  1. Plush cushioning: Although both shoes feature our latest nitrogen-infused DNA LOFT v3 cushioning, Glycerin 21 has an additional 2 mm of it underfoot. That makes it our most cushioned running shoe yet.
  2. Improved upper: Glycerin 20’s breathable air-mesh upper offers a secure and comfortable fit. Glycerin 21’s new engineered warp knit upper is also breathable but provides structure in crucial locations across the foot.
  3. Custom fit: Both the Glycerin 20 and Glycerin 21 offer a choice of classic fit or StealthFit, which moulds closely to your foot. Both shoes are also available with go-to-support (GTS) via our GuideRails® technology.
  4. Sole technology: Glycerin 21 is the first shoe in the Glycerin series with our new RoadTack rubber, a resilient, lightweight compound made using a mix of rubber and recycled silica.
  5. Smooth transitions: Glycerin 20 and Glycerin 21 feature a redesigned midsole and outsole, creating a widened platform for greater stability and smoother heel-to-toe transitions.

Additional information


429 Blue/Nightlife/Black


7, 8, 9, 9.5, 10, 11