Ultrafly 6
A lightly supportive road shoe for daily runs and walks. Ultrafly 6 adds cushioning and extends its medial post around the heel compared with Ultrafly 5. The multi-density ZipFoam midsole pairs a softer foot-facing layer with a firmer base. Broader outsole rubber coverage targets durability and traction, while breathable upper materials and a roomy toe box accommodate natural toe spread.
- Intended uses:
- Daily, Long run
Specs
- Weight
- 272g
- Of 934 known values: 433 lower, 14 equal, 487 higher. The marker uses the midpoint of equal values.
- Standard47.1th percentile (tie midpoint) / average +4g
- Drop
- 5mm
- Of 945 known values: 158 lower, 107 equal, 680 higher. The marker uses the midpoint of equal values.
- lowerLower 28%, including ties / average -1.8mm
- Stack (heel/forefoot)
- 32 / 27mm
- Of 779 known values: 224 lower, 51 equal, 504 higher. The marker uses the midpoint of equal values.
- lowerLower 35.3%, including ties / average -2.3mm
- Carbon plate
- No
- 83% of 855 known models have no carbon plates
- Midsole
- ZipFoam
- Outsole
- rubber
- Reference price
- $150
- US price
Weight measurement and plate details
- Weight note
- 272g at M9 from Topo Athletic Japan official product page.
- Plate note
- False is supported by the sufficiently complete exact JP and US construction/technology descriptions, which identify ZipFoam and the redesigned medial post without a carbon structure. The second exact official page corroborates the complete-spec classification; this is not an explicit no-carbon quotation or a 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 | $150Shown above | 2026-02-01Shown above |
| JapanJP | ¥23,650 | Not registered |
Changes from the previous model
A comparison with the registered values for Topo Athletic Ultrafly 5.
In the registered data, heel stack is 2mm higher at 32mm and forefoot stack is 2mm higher at 27mm.
These are differences between registered values, not a controlled comparison at the same size and measurement conditions. See the notes below the specs for weight conditions.
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 (761 shoes)
The scatter plot includes only shoes with both weight and stack height registered.
Spec distributions
Weight
This shoe 272gregistered average 268g (934 shoes)
Drop
This shoe 5mmregistered average 6.8mm (945 shoes)
Stack height
This shoe 32mmregistered average 34.3mm (779 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
Official video from Topo Athletic.