True-to-Size Millimeter Sizing Comparison

Crocs Work Work Bistro (Unisex) vs Reef Fanning

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

Shoe Amen
Crocs Work Work Bistro (Unisex)
4.0(3,951 reviews)
Fit TendencyRuns Large (+4mm)
Width ProfileWide
View Full Work Bistro (Unisex) Breakdown
Shoe Bunisex
Reef Fanning
4.6(3,385 reviews)
Fit TendencyTrue to Size
Width ProfileStandard (Medium)
View Full Fanning Breakdown
Fit Verdict

Fanning Runs Slightly Smaller

The Fanning is about 4mm shorter than the Work Bistro (Unisex). We suggest ordering 1/2 size up in Fanning.

Length Delta-4 mm
Width Delta-3 mm

Interactive Size Converter

Select what size you wear in the Work Bistro (Unisex) to see your calculated size in the Fanning.

Recommended Size in Reef Fanning
US 1188% Match

Internal shoe cavity difference: -1.0 mm (snugger)

Alternate option if between sizes: US 11.5 (65% match)

Complete Size Conversion Matrix

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

Work Bistro (Unisex) (US)Internal CavityFanning EquivalentMatch AccuracyFit Difference
US 7271 mmUS 7.588%-1.0 mm
US 7.5274 mmUS 888%-1.0 mm
US 8277 mmUS 8.5100%0.0 mm
US 8.5281 mmUS 988%-1.0 mm
US 9284 mmUS 9.588%-1.0 mm
US 9.5287 mmUS 10100%0.0 mm
US 10291 mmUS 10.588%-1.0 mm
US 10.5294 mmUS 1188%-1.0 mm
US 11297 mmUS 11.5100%0.0 mm
US 11.5301 mmUS 1288%-1.0 mm
US 12304 mmUS 12.588%-1.0 mm
US 12.5307 mmUS 13100%0.0 mm
US 13311 mmUS 1476%+2.0 mm
US 14317 mmUS 1453%-4.0 mm

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Frequently Asked Questions

How does the Work Bistro (Unisex) size compare to the Fanning?

The Fanning is about 4mm shorter than the Work Bistro (Unisex). We suggest ordering 1/2 size up in Fanning. The Work Bistro (Unisex) has an internal fit offset of 4mm compared to 0mm for the Fanning.

Do these shoes fit wide feet comfortably?

The Work Bistro (Unisex) has a roomy/wide width profile, while the Fanning is standard medium.