Discontinued · road · Recovery / Long run / Daily · $145
Earlier generation of the Brooks Glycerin line, kept for replacement lookups.
Built for recovery, long run, daily, at a target pace of 8:30–11:30 /mi on road.
This model is no longer in production. The closest shoe you can buy today is Brooks Glycerin 22.
Brooks tuned this midsole very soft (5/5 on our cushioning scale). Energy return is moderate — comfortable and predictable rather than bouncy. 35 mm of heel stack is the modern daily-trainer sweet spot — enough foam for long miles without losing contact with the road. Combined, the ride reads as calm at 2/5 responsiveness.
There is no plate here. The midsole does all the work, so the shoe flexes naturally and stays versatile across paces — easier on the feet day to day, but without the snap of a plated shoe when you want to roll.
A tall 10 mm drop tips weight forward off the heel, which usually suits heel strikers and calves that dislike low-drop shoes. The geometry is fairly traditional and flat, so the shoe follows your foot rather than steering it. The forefoot is stiff, so it rolls rather than bends — a lever, not a slipper. Support is light — neutral, with a mildly steady platform.
The toe-box is standard width — comfortable for most feet without swimming. It fits true to size. Expect roughly 500 miles from the outsole, about $0.29 per mile at $145.
For the foams and plates Brooks uses across its line, read the Brooks brand guide.
Measured against the 542 currently-available shoes in the catalog. The bar shows where this shoe sits in that range.
Weight
286 g / 10.1 oz
11 g heavier than the catalog median of 275 g
Heel stack
35 mm
1 mm lower than the catalog median of 36 mm
Drop
10 mm
4 mm higher than the catalog median of 6 mm
Price
$145
15 cheaper than the catalog median of 160
Responsiveness
2 / 5
Catalog median 3 / 5
Cushioning
5 / 5
Catalog median 4 / 5
Energy return
3 / 5
Catalog median 3 / 5
Durability
~500 mi
Catalog median ~400 mi
Within the Brooks line it is heavier than the brand's median (283 g / 10.0 oz) and sits lower than its median stack (36 mm).
Current shoes with the nearest combination of weight, stack, drop, foam feel and plate.
Adidas Supernova Solution
278 g / 9.8 oz · 36 mm · 10 mm drop · — · $150
Adidas' support daily with Support Rods for mild guidance.
Brooks Glycerin StealthFit 21
283 g / 10.0 oz · 38 mm · 10 mm drop · — · $180
Brooks Glycerin StealthFit 21: 38 mm heel stack, 10 mm drop, 257 g — specs from independent lab testing.
Under Armour Infinite Elite 2
290 g / 10.2 oz · 36 mm · 8 mm drop · — · $160
Soft, protective daily trainer for high-mileage comfort.
Brooks Adrenaline GTS 25(2025)
300 g / 10.6 oz · 37 mm · 10 mm drop · — · $145
GuideRails support in a softer, smoother 25th edition.