True-to-Size Millimeter Sizing Comparison

ECCO Sport Yucatan vs OOFOS OOahh

Detailed size conversion chart, cavity measurements in millimeters, and crowd-sourced fit advice for choosing your perfect size.

Shoe Aunisex
ECCO Sport Yucatan
4.5(1,726 reviews)
Fit TendencyTrue to Size
Width ProfileStandard (Medium)
View Full Yucatan Breakdown
Shoe Bmen
OOFOS OOahh
5.0(8,276 reviews)
Fit TendencyTrue to Size
Width ProfileStandard (Medium)
View Full OOahh Breakdown
Fit Verdict

True to Size Comparison

Both shoes share a very similar length profile. We recommend ordering your standard size in both.

Length Delta+0.36 mm
Width Delta+0.09 mm

Interactive Size Converter

Select what size you wear in the Yucatan to see your calculated size in the OOahh.

Recommended Size in OOFOS OOahh
US 8.596% Match

Internal shoe cavity difference: +0.4 mm (slightly roomier)

Complete Size Conversion Matrix

Direct millimeter-calibrated mapping comparing all available sizes between both shoes.

Yucatan (US)Internal CavityOOahh EquivalentMatch AccuracyFit Difference
US 3.5240 mmUS 70%+27.4 mm
US 4243 mmUS 70%+24.4 mm
US 4.5247 mmUS 70%+20.4 mm
US 5250 mmUS 70%+17.4 mm
US 5.5253 mmUS 70%+14.4 mm
US 6257 mmUS 70%+10.4 mm
US 6.5260 mmUS 713%+7.4 mm
US 7267 mmUS 796%+0.4 mm
US 7.5270 mmUS 7.596%+0.4 mm
US 8273 mmUS 896%+0.4 mm
US 8.5277 mmUS 8.596%+0.4 mm
US 9280 mmUS 996%+0.4 mm
US 9.5283 mmUS 9.596%+0.4 mm
US 10287 mmUS 1096%+0.4 mm
US 10.5290 mmUS 10.596%+0.4 mm
US 11293 mmUS 1196%+0.4 mm
US 11.5297 mmUS 11.596%+0.4 mm
US 12300 mmUS 1296%+0.4 mm
US 12.5303 mmUS 12.596%+0.4 mm
US 13307 mmUS 1396%+0.4 mm
US 14313 mmUS 1496%+0.4 mm

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Frequently Asked Questions

How does the Yucatan size compare to the OOahh?

Both shoes share a very similar length profile. We recommend ordering your standard size in both. The Yucatan has an internal fit offset of -0.2mm compared to 0.16mm for the OOahh.

Do these shoes fit wide feet comfortably?

The Yucatan has a snug/narrow width profile, while the OOahh is snug/narrow.