Glycerin Flex
Glycerin Flex is a road trainer for daily miles and long runs, with an emphasis on moving with the foot. FlexZone pairs an asymmetrical midfoot flex groove with a podular lateral forefoot for flexibility from landing to toe-off. Dual-cell DNA TUNED tunes cushioning between heel and forefoot, while a breathable flat-knit upper stays flexible around the foot.
- Intended uses:
- Daily, Long run, Walking
Specs
- Weight
- 250g
- Of 948 known values: 263 lower, 21 equal, 664 higher. The marker uses the midpoint of equal values.
- lighterLower 30%, including ties / average -18g
- Drop
- 6mm
- Of 961 known values: 274 lower, 174 equal, 513 higher. The marker uses the midpoint of equal values.
- Standard37.6th percentile (tie midpoint) / average -0.8mm
- Stack (heel/forefoot)
- 36 / 30mm
- Of 788 known values: 434 lower, 46 equal, 308 higher. The marker uses the midpoint of equal values.
- Standard58th percentile (tie midpoint) / average +1.7mm
- Carbon plate
- No
- 83% of 866 known models have no carbon plates
- Midsole
- DNA TUNED
- Outsole
- Rubber
- Reference price
- $170
- US price
Weight measurement and plate details
- Weight note
- Brooks Japan official men's product page lists 250g at 27cm. Brooks US lists 9.1oz / 258.0g for its men's sample, so the Japanese 27cm value is used for the JP row.
- Plate note
- Non-carbon classification follows the complete exact JP/US construction: DNA TUNED, FlexZone midfoot grooves and podular forefoot, plus a flat-knit upper, corroborated by REI. No carbon mechanism is identified; this is not a blanket no-plate claim.
Prices and release dates by market
2 markets are registered. Values are shown as published for each market: no currency conversion and no guessed days or months. Reference prices are not current shop prices.
| Market | Reference price | Release |
|---|---|---|
| United StatesUS | $170Shown above | Not registered |
| JapanJP | ¥27,500 | 2026-02-20Shown above |
Compare within the database
See where these specs sit in the overall distribution. You can also compare within the same category.
Position map
Weight x stack height
registered average: 266g / 34.4mm (768 shoes)
The scatter plot includes only shoes with both weight and stack height registered.
Spec distributions
Weight
This shoe 250gregistered average 268g (948 shoes)
Drop
This shoe 6mmregistered average 6.8mm (961 shoes)
Stack height
This shoe 36mmregistered average 34.3mm (788 shoes)
Items with missing numeric values are excluded. Sample sizes and measurement conditions vary between models; this distribution is not a performance ranking.
Related video
Shoe overview by Running Warehouse.