True-to-Size Millimeter Sizing Comparison
SOUL Naturalizer Gift Flat vs SOUL Naturalizer Tia Platform Slip-On Sneaker
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 Gift Flat to see your calculated size in the Tia Platform Slip-On Sneaker.
Complete Size Conversion Matrix
Direct millimeter-calibrated mapping comparing all available sizes between both shoes.
| Gift Flat (US) | Internal Cavity | Tia Platform Slip-On Sneaker Equivalent | Match Accuracy | Fit Difference |
|---|---|---|---|---|
| US 4.5 | 233 mm | US 4.5 | 100% | 0.0 mm |
| US 5 | 237 mm | US 5 | 100% | 0.0 mm |
| US 5.5 | 240 mm | US 5.5 | 100% | 0.0 mm |
| US 6 | 243 mm | US 6 | 100% | 0.0 mm |
| US 6.5 | 247 mm | US 6.5 | 100% | 0.0 mm |
| US 7 | 250 mm | US 7 | 100% | 0.0 mm |
| US 7.5 | 253 mm | US 7.5 | 100% | 0.0 mm |
| US 8 | 257 mm | US 8 | 100% | 0.0 mm |
| US 8.5 | 260 mm | US 8.5 | 100% | 0.0 mm |
| US 9 | 267 mm | US 9 | 100% | 0.0 mm |
| US 9.5 | 270 mm | US 9.5 | 100% | 0.0 mm |
| US 10 | 273 mm | US 10 | 100% | 0.0 mm |
| US 10.5 | 277 mm | US 10.5 | 100% | 0.0 mm |
| US 11 | 280 mm | US 11 | 100% | 0.0 mm |
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Frequently Asked Questions
How does the Gift Flat size compare to the Tia Platform Slip-On Sneaker?
Both shoes share a very similar length profile. We recommend ordering your standard size in both. The Gift Flat has an internal fit offset of 0mm compared to 0mm for the Tia Platform Slip-On Sneaker.
Do these shoes fit wide feet comfortably?
The Gift Flat has a standard medium width profile, while the Tia Platform Slip-On Sneaker is standard medium.