True-to-Size Millimeter Sizing Comparison
Naturalizer Marianne vs Naturalizer Michelle
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 Marianne to see your calculated size in the Michelle.
Complete Size Conversion Matrix
Direct millimeter-calibrated mapping comparing all available sizes between both shoes.
| Marianne (US) | Internal Cavity | Michelle Equivalent | Match Accuracy | Fit Difference |
|---|---|---|---|---|
| US 4.5 | 233 mm | US 3.5 | 19% | +6.8 mm |
| US 5 | 237 mm | US 3.5 | 66% | +2.8 mm |
| US 5.5 | 240 mm | US 3.5 | 98% | -0.2 mm |
| US 6 | 243 mm | US 4 | 98% | -0.2 mm |
| US 6.5 | 247 mm | US 4.5 | 98% | -0.2 mm |
| US 7 | 250 mm | US 5 | 98% | -0.2 mm |
| US 7.5 | 253 mm | US 5.5 | 98% | -0.2 mm |
| US 8 | 257 mm | US 6 | 98% | -0.2 mm |
| US 8.5 | 260 mm | US 6.5 | 98% | -0.2 mm |
| US 9 | 267 mm | US 7 | 98% | -0.2 mm |
| US 9.5 | 270 mm | US 7.5 | 98% | -0.2 mm |
| US 10 | 273 mm | US 8 | 98% | -0.2 mm |
| US 10.5 | 277 mm | US 8.5 | 98% | -0.2 mm |
| US 11 | 280 mm | US 9 | 98% | -0.2 mm |
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Frequently Asked Questions
How does the Marianne size compare to the Michelle?
Both shoes share a very similar length profile. We recommend ordering your standard size in both. The Marianne has an internal fit offset of 0.28mm compared to 0.12mm for the Michelle.
Do these shoes fit wide feet comfortably?
The Marianne has a snug/narrow width profile, while the Michelle is snug/narrow.