True-to-Size Millimeter Sizing Comparison
HOKA Ora Recovery Slide 3 vs OOFOS OOriginal Thong
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 OOriginal Thong.
Complete Size Conversion Matrix
Direct millimeter-calibrated mapping comparing all available sizes between both shoes.
| Ora Recovery Slide 3 (US) | Internal Cavity | OOriginal Thong 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 |
Related Comparisons
Direct RivalryClassic Clogs vs Ora Recovery Slide 3View Sizing ComparisonDirect RivalryAdilette Comfort Slides vs Ora Recovery Slide 3View Sizing ComparisonDirect RivalryAdilette Aqua Slides vs Ora Recovery Slide 3View Sizing ComparisonDirect RivalryClassic Lined Clog vs Ora Recovery Slide 3View Sizing ComparisonDirect RivalryClassic Clogs vs OOriginal ThongView Sizing ComparisonDirect RivalryAdilette Comfort Slides vs OOriginal ThongView Sizing Comparison
Frequently Asked Questions
How does the Ora Recovery Slide 3 size compare to the OOriginal Thong?
The OOriginal Thong is about 4mm shorter than the Ora Recovery Slide 3. We suggest ordering 1/2 size up in OOriginal Thong. The Ora Recovery Slide 3 has an internal fit offset of 4mm compared to 0mm for the OOriginal Thong.
Do these shoes fit wide feet comfortably?
The Ora Recovery Slide 3 has a standard medium width profile, while the OOriginal Thong is standard medium.