True-to-Size Millimeter Sizing Comparison
Hey Dude Paul vs Hey Dude Wendy Funk Mono
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 Paul to see your calculated size in the Wendy Funk Mono.
Complete Size Conversion Matrix
Direct millimeter-calibrated mapping comparing all available sizes between both shoes.
| Paul (US) | Internal Cavity | Wendy Funk Mono Equivalent | Match Accuracy | Fit Difference |
|---|---|---|---|---|
| US 3.5 | 240 mm | US 3.5 | 96% | +0.3 mm |
| US 4 | 243 mm | US 4 | 96% | +0.3 mm |
| US 4.5 | 247 mm | US 4.5 | 96% | +0.3 mm |
| US 5 | 250 mm | US 5 | 96% | +0.3 mm |
| US 5.5 | 253 mm | US 5.5 | 96% | +0.3 mm |
| US 6 | 257 mm | US 6 | 96% | +0.3 mm |
| US 6.5 | 260 mm | US 6.5 | 96% | +0.3 mm |
| US 7 | 267 mm | US 7 | 96% | +0.3 mm |
| US 7.5 | 270 mm | US 7.5 | 96% | +0.3 mm |
| US 8 | 273 mm | US 8 | 96% | +0.3 mm |
| US 8.5 | 277 mm | US 8.5 | 96% | +0.3 mm |
| US 9 | 280 mm | US 9 | 96% | +0.3 mm |
| US 9.5 | 283 mm | US 9.5 | 96% | +0.3 mm |
| US 10 | 287 mm | US 10 | 96% | +0.3 mm |
| US 10.5 | 290 mm | US 10.5 | 96% | +0.3 mm |
| US 11 | 293 mm | US 11 | 96% | +0.3 mm |
| US 11.5 | 297 mm | US 11.5 | 96% | +0.3 mm |
| US 12 | 300 mm | US 12 | 96% | +0.3 mm |
| US 12.5 | 303 mm | US 12.5 | 96% | +0.3 mm |
| US 13 | 307 mm | US 13 | 96% | +0.3 mm |
| US 14 | 313 mm | US 14 | 96% | +0.3 mm |
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Frequently Asked Questions
How does the Paul size compare to the Wendy Funk Mono?
Both shoes share a very similar length profile. We recommend ordering your standard size in both. The Paul has an internal fit offset of 0mm compared to 0.32mm for the Wendy Funk Mono.
Do these shoes fit wide feet comfortably?
The Paul has a standard medium width profile, while the Wendy Funk Mono is roomy/wide.