True-to-Size Millimeter Sizing Comparison
Adidas Adilette Comfort 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 Adilette Comfort to see your calculated size in the OOriginal Thong.
Complete Size Conversion Matrix
Direct millimeter-calibrated mapping comparing all available sizes between both shoes.
| Adilette Comfort (US) | Internal Cavity | OOriginal Thong Equivalent | Match Accuracy | Fit Difference |
|---|---|---|---|---|
| US 4 | 238 mm | US 7 | 0% | +29.2 mm |
| US 4.5 | 242 mm | US 7 | 0% | +25.2 mm |
| US 5 | 246 mm | US 7 | 0% | +21.2 mm |
| US 5.5 | 250 mm | US 7 | 0% | +17.2 mm |
| US 6 | 255 mm | US 7 | 0% | +12.2 mm |
| US 6.5 | 259 mm | US 7 | 3% | +8.2 mm |
| US 7 | 263 mm | US 7 | 50% | +4.2 mm |
| US 7.5 | 267 mm | US 7 | 98% | +0.2 mm |
| US 8 | 272 mm | US 8 | 86% | +1.2 mm |
| US 8.5 | 276 mm | US 8.5 | 86% | +1.2 mm |
| US 9 | 280 mm | US 9 | 98% | +0.2 mm |
| US 9.5 | 284 mm | US 9.5 | 91% | -0.8 mm |
| US 10 | 288 mm | US 10 | 91% | -0.8 mm |
| US 10.5 | 293 mm | US 11 | 98% | +0.2 mm |
| US 11 | 297 mm | US 11.5 | 98% | +0.2 mm |
| US 11.5 | 301 mm | US 12 | 91% | -0.8 mm |
| US 12 | 305 mm | US 12.5 | 79% | -1.8 mm |
| US 12.5 | 310 mm | US 13 | 67% | -2.8 mm |
| US 13 | 314 mm | US 14 | 91% | -0.8 mm |
| US 13.5 | 318 mm | US 14 | 43% | -4.8 mm |
| US 14 | 322 mm | US 14 | 0% | -8.8 mm |
| US 14.5 | 327 mm | US 14 | 0% | -13.8 mm |
| US 15 | 331 mm | US 14 | 0% | -17.8 mm |
| US 16 | 335 mm | US 14 | 0% | -21.8 mm |
| US 17 | 343 mm | US 14 | 0% | -29.8 mm |
| US 18 | 352 mm | US 14 | 0% | -38.8 mm |
| US 19 | 360 mm | US 14 | 0% | -46.8 mm |
| US 20 | 369 mm | US 14 | 0% | -55.8 mm |
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Frequently Asked Questions
How does the Adilette Comfort size compare to the OOriginal Thong?
Both shoes share a very similar length profile. We recommend ordering your standard size in both. The Adilette Comfort has an internal fit offset of 0.88mm compared to 0.08mm for the OOriginal Thong.
Do these shoes fit wide feet comfortably?
The Adilette Comfort has a roomy/wide width profile, while the OOriginal Thong is roomy/wide.