True-to-Size Millimeter Sizing Comparison
Birkenstock Mayari vs HOKA Ora Recovery Flip
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 Mayari to see your calculated size in the Ora Recovery Flip.
Complete Size Conversion Matrix
Direct millimeter-calibrated mapping comparing all available sizes between both shoes.
| Mayari (US) | Internal Cavity | Ora Recovery Flip Equivalent | Match Accuracy | Fit Difference |
|---|---|---|---|---|
| US 4 | 233 mm | EU 36 | 21% | +6.7 mm |
| US 5 | 240 mm | EU 36 | 96% | -0.3 mm |
| US 6 | 247 mm | EU 37 1/3 | 80% | +1.7 mm |
| US 7 | 253 mm | EU 38 | 96% | -0.3 mm |
| US 8 | 260 mm | EU 39 1/3 | 77% | +2.0 mm |
| US 9 | 267 mm | EU 40 | 96% | -0.3 mm |
| US 10 | 273 mm | EU 40 2/3 | 72% | -2.3 mm |
| US 11 | 280 mm | EU 42 | 96% | -0.3 mm |
| US 12 | 287 mm | EU 43 1/3 | 80% | +1.7 mm |
| US 11 | 293 mm | EU 44 | 96% | -0.3 mm |
| US 12 | 300 mm | EU 45 1/3 | 80% | +1.7 mm |
| US 13 | 307 mm | EU 46 | 96% | -0.3 mm |
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Frequently Asked Questions
How does the Mayari size compare to the Ora Recovery Flip?
Both shoes share a very similar length profile. We recommend ordering your standard size in both. The Mayari has an internal fit offset of 0.01mm compared to -0.32mm for the Ora Recovery Flip.
Do these shoes fit wide feet comfortably?
The Mayari has a snug/narrow width profile, while the Ora Recovery Flip is roomy/wide.