True-to-Size Millimeter Sizing Comparison
Crocs Work Work Bistro (Unisex) vs The North Face ThermoBall™ Traction Mule V
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 Work Bistro (Unisex) to see your calculated size in the ThermoBall™ Traction Mule V.
Complete Size Conversion Matrix
Direct millimeter-calibrated mapping comparing all available sizes between both shoes.
| Work Bistro (Unisex) (US) | Internal Cavity | ThermoBall™ Traction Mule V Equivalent | Match Accuracy | Fit Difference |
|---|---|---|---|---|
| US 7 | 271 mm | US 8 | 76% | -2.0 mm |
| US 7.5 | 274 mm | US 8.5 | 88% | -1.0 mm |
| US 8 | 277 mm | US 9 | 88% | -1.0 mm |
| US 8.5 | 281 mm | US 9.5 | 76% | -2.0 mm |
| US 9 | 284 mm | US 10 | 88% | -1.0 mm |
| US 9.5 | 287 mm | US 10.5 | 88% | -1.0 mm |
| US 10 | 291 mm | US 11 | 76% | -2.0 mm |
| US 10.5 | 294 mm | US 11.5 | 88% | -1.0 mm |
| US 11 | 297 mm | US 12 | 88% | -1.0 mm |
| US 11.5 | 301 mm | US 12.5 | 76% | -2.0 mm |
| US 12 | 304 mm | US 13 | 88% | -1.0 mm |
| US 12.5 | 307 mm | US 14 | 76% | +2.0 mm |
| US 13 | 311 mm | US 14 | 76% | -2.0 mm |
| US 14 | 317 mm | US 14 | 5% | -8.0 mm |
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Frequently Asked Questions
How does the Work Bistro (Unisex) size compare to the ThermoBall™ Traction Mule V?
The ThermoBall™ Traction Mule V is about 8mm shorter than the Work Bistro (Unisex). We suggest ordering 1 full size up in ThermoBall™ Traction Mule V. The Work Bistro (Unisex) has an internal fit offset of 4mm compared to -4mm for the ThermoBall™ Traction Mule V.
Do these shoes fit wide feet comfortably?
The Work Bistro (Unisex) has a roomy/wide width profile, while the ThermoBall™ Traction Mule V is standard medium.