True-to-Size Millimeter Sizing Comparison
Adidas Gazelle vs Sperry AO 2 Eye Leather MM
Detailed size conversion chart, cavity measurements in millimeters, and crowd-sourced fit advice for choosing your perfect size.
Interactive Size Converter
Select what size you wear in the Gazelle to see your calculated size in the AO 2 Eye Leather MM.
Complete Size Conversion Matrix
Direct millimeter-calibrated mapping comparing all available sizes between both shoes.
| Gazelle (US) | Internal Cavity | AO 2 Eye Leather MM Equivalent | Match Accuracy | Fit Difference |
|---|---|---|---|---|
| US 4 | 237 mm | US 3.5 | 65% | +3.0 mm |
| US 4.5 | 241 mm | US 3.5 | 88% | -1.0 mm |
| US 5 | 245 mm | US 4.5 | 77% | +2.0 mm |
| US 5.5 | 249 mm | US 5 | 89% | +1.0 mm |
| US 6 | 254 mm | US 5.5 | 88% | -1.0 mm |
| US 6.5 | 258 mm | US 6 | 88% | -1.0 mm |
| US 7 | 262 mm | US 6.5 | 76% | -2.0 mm |
| US 7.5 | 266 mm | US 7 | 89% | +1.0 mm |
| US 8 | 271 mm | US 7.5 | 88% | -1.0 mm |
| US 8.5 | 275 mm | US 8.5 | 77% | +2.0 mm |
| US 9 | 279 mm | US 9 | 89% | +1.0 mm |
| US 9.5 | 283 mm | US 9.5 | 100% | -0.0 mm |
| US 10 | 287 mm | US 10 | 100% | -0.0 mm |
| US 10.5 | 292 mm | US 11 | 89% | +1.0 mm |
| US 11 | 296 mm | US 11.5 | 89% | +1.0 mm |
| US 11.5 | 300 mm | US 12 | 100% | -0.0 mm |
| US 12 | 304 mm | US 12.5 | 88% | -1.0 mm |
| US 12.5 | 309 mm | US 13 | 76% | -2.0 mm |
| US 13 | 313 mm | US 14 | 100% | -0.0 mm |
| US 13.5 | 317 mm | US 14 | 52% | -4.0 mm |
| US 14 | 321 mm | US 14 | 5% | -8.0 mm |
| US 14.5 | 326 mm | US 14 | 0% | -13.0 mm |
| US 15 | 330 mm | US 14 | 0% | -17.0 mm |
| US 16 | 334 mm | US 14 | 0% | -21.0 mm |
| US 17 | 342 mm | US 14 | 0% | -29.0 mm |
| US 18 | 351 mm | US 14 | 0% | -38.0 mm |
| US 19 | 359 mm | US 14 | 0% | -46.0 mm |
| US 20 | 368 mm | US 14 | 0% | -55.0 mm |
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Frequently Asked Questions
How does the Gazelle size compare to the AO 2 Eye Leather MM?
Both shoes share a very similar length profile. We recommend ordering your standard size in both. The Gazelle has an internal fit offset of 0.04mm compared to 0mm for the AO 2 Eye Leather MM.
Do these shoes fit wide feet comfortably?
The Gazelle has a snug/narrow width profile, while the AO 2 Eye Leather MM is standard medium.