The Brooks Glycerin 23 is a premium neutral trainer built to maximise comfort through daily mileage and long runs. Nitrogen-infused DNA Tuned cushioning differentiates heel softness from forefoot response, with an 8 mm drop and claimed 300.5 g weight.
Positioning: maximal cushioning with controlled transition
Glycerin 23 prioritises protection, an enveloping fit and an inherently stable base. It suits runners willing to accept more weight for substantial cushioning and predictable long-run behaviour.
| undefined | Brooks Glycerin 23 |
|---|---|
| Use | Road, smooth paths, daily training and long runs |
| Cushioning | Nitrogen-infused DNA Tuned |
| Drop | 8 mm |
| Claimed weight | 300.5 g |
| Stability | Neutral with moderate intrinsic support |
| Outsole | RoadTack |
| Upper | Comfort fit with secure heel |
| Feel | Soft landing and more responsive forefoot |
DNA Tuned: zone-specific cell structure
DNA Tuned varies the structure of its nitrogen-infused foam. Larger heel cells encourage compression and softness; smaller forefoot cells create a denser response at toe-off.
This differentiation avoids some compromise of uniform foam that can feel either too firm at landing or too soft in propulsion. Comfort remains the priority, but transition gains continuity as the forefoot loads.
8 mm drop and intrinsic stability
An 8 mm drop works for a broad range of gaits. Sole width, heel hold and foam distribution stabilise without a corrective device. Weight becomes most noticeable during rapid accelerations.
Ride by session
Easy and recovery runs
This is its strongest area. A soft heel reduces harshness and the enveloping fit limits unwanted movement.
Long runs
The cushioning reserve and RoadTack outsole suit sustained mileage. The broad base remains reassuring as fatigue develops.
Sustained pace
The DNA Tuned forefoot responds adequately, but 300.5 g limits fast-interval appeal. It prefers steady efforts.
Brooks Glycerin 23 vs Saucony Triumph 24
| undefined | Brooks Glycerin 23 | Saucony Triumph 24 |
|---|---|---|
| Priority | Enveloping comfort and natural stability | Soft comfort at lower weight |
| Drop | 8 mm | 10 mm |
| Claimed weight | 300.5 g | About 250 g |
| Choose it for | Protection and premium fit | More agility over long distance |
These are genuine highly cushioned neutral competitors. Glycerin reassures through fit and footprint; Triumph is much lighter with a higher drop.
More versatile alternative: Brooks Ghost 18
Ghost 18 keeps a familiar Brooks feel with less volume and broader daily versatility when maximal comfort is not essential.
Who should choose it?
- neutral runners seeking premium cushioning
- runners building easy and long-run mileage
- heavier profiles wanting a stable base
- users who enjoy a padded fit and 8 mm drop
It is less suited to very fast sessions, high flexibility or a light ground-connected feel.
Fit and sizing
Padding should hold the heel without reducing toe space. Keep a front margin and check forefoot heat. Test at easy pace and through several accelerations.
Tripp Sport technical verdict
Glycerin 23 fully embraces premium protection. DNA Tuned softens landing and structures propulsion, RoadTack supports durability and the platform reassures over long runs. Weight is its main compromise.
View the Brooks Glycerin 23 at Tripp Sport
FAQ
Suitable for a marathon?
Yes for runners prioritising comfort and stability over minimum weight.
Is it a stability shoe?
It is neutral with moderate intrinsic support. The GTS version is preferable when structured guidance is needed.
Difference from Ghost 18?
Glycerin is more cushioned, heavier and more enveloping; Ghost is simpler and more versatile.