True-to-Size Millimeter Sizing Comparison
HOKA Ora Recovery Slide 3 vs OOFOS OOahh Slide
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 Ora Recovery Slide 3 to see your calculated size in the OOahh Slide.
Complete Size Conversion Matrix
Direct millimeter-calibrated mapping comparing all available sizes between both shoes.
| Ora Recovery Slide 3 (US) | Internal Cavity | OOahh Slide Equivalent | Match Accuracy | Fit Difference |
|---|---|---|---|---|
| US 7 | 271 mm | US 7.5 | 88% | -1.0 mm |
| US 7.5 | 274 mm | US 8 | 88% | -1.0 mm |
| US 8 | 277 mm | US 8.5 | 100% | 0.0 mm |
| US 8.5 | 281 mm | US 9 | 88% | -1.0 mm |
| US 9 | 284 mm | US 9.5 | 88% | -1.0 mm |
| US 9.5 | 287 mm | US 10 | 100% | 0.0 mm |
| US 10 | 291 mm | US 10.5 | 88% | -1.0 mm |
| US 10.5 | 294 mm | US 11 | 88% | -1.0 mm |
| US 11 | 297 mm | US 11.5 | 100% | 0.0 mm |
| US 11.5 | 301 mm | US 12 | 88% | -1.0 mm |
| US 12 | 304 mm | US 12.5 | 88% | -1.0 mm |
| US 12.5 | 307 mm | US 13 | 100% | 0.0 mm |
| US 13 | 311 mm | US 14 | 76% | +2.0 mm |
| US 14 | 317 mm | US 14 | 53% | -4.0 mm |
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Frequently Asked Questions
How does the Ora Recovery Slide 3 size compare to the OOahh Slide?
The OOahh Slide is about 4mm shorter than the Ora Recovery Slide 3. We suggest ordering 1/2 size up in OOahh Slide. The Ora Recovery Slide 3 has an internal fit offset of 4mm compared to 0mm for the OOahh Slide.
Do these shoes fit wide feet comfortably?
The Ora Recovery Slide 3 has a standard medium width profile, while the OOahh Slide is standard medium.