True-to-Size Millimeter Sizing Comparison
KEEN Utility Cincinnati 6" Waterproof (Carbon Toe) vs KEEN Utility Vista Energy
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 Cincinnati 6" Waterproof (Carbon Toe) to see your calculated size in the Vista Energy.
Complete Size Conversion Matrix
Direct millimeter-calibrated mapping comparing all available sizes between both shoes.
| Cincinnati 6" Waterproof (Carbon Toe) (US) | Internal Cavity | Vista Energy Equivalent | Match Accuracy | Fit Difference |
|---|---|---|---|---|
| US 7 | 267 mm | US 7.5 | 88% | -1.0 mm |
| US 7.5 | 270 mm | US 8 | 88% | -1.0 mm |
| US 8 | 273 mm | US 8.5 | 100% | 0.0 mm |
| US 8.5 | 277 mm | US 9 | 88% | -1.0 mm |
| US 9 | 280 mm | US 9.5 | 88% | -1.0 mm |
| US 9.5 | 283 mm | US 10 | 100% | 0.0 mm |
| US 10 | 287 mm | US 10.5 | 88% | -1.0 mm |
| US 10.5 | 290 mm | US 11 | 88% | -1.0 mm |
| US 11 | 293 mm | US 11.5 | 100% | 0.0 mm |
| US 11.5 | 297 mm | US 12 | 88% | -1.0 mm |
| US 12 | 300 mm | US 12.5 | 88% | -1.0 mm |
| US 12.5 | 303 mm | US 13 | 100% | 0.0 mm |
| US 13 | 307 mm | US 14 | 76% | +2.0 mm |
| US 14 | 313 mm | US 14 | 53% | -4.0 mm |
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Frequently Asked Questions
How does the Cincinnati 6" Waterproof (Carbon Toe) size compare to the Vista Energy?
The Vista Energy is about 4mm shorter than the Cincinnati 6" Waterproof (Carbon Toe). We suggest ordering 1/2 size up in Vista Energy. The Cincinnati 6" Waterproof (Carbon Toe) has an internal fit offset of 0mm compared to -4mm for the Vista Energy.
Do these shoes fit wide feet comfortably?
The Cincinnati 6" Waterproof (Carbon Toe) has a standard medium width profile, while the Vista Energy is standard medium.