True-to-Size Millimeter Sizing Comparison

Frye Campus 14L vs Frye Harness 12R

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

Shoe Aunisex
Frye Campus 14L
4.4(1,090 reviews)
Fit TendencyRuns Large (+4mm)
Width ProfileStandard (Medium)
View Full Campus 14L Breakdown
Shoe Bunisex
Frye Harness 12R
4.7(1,365 reviews)
Fit TendencyRuns Large (+4mm)
Width ProfileStandard (Medium)
View Full Harness 12R Breakdown
Fit Verdict

True to Size Comparison

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

Length Delta0 mm
Width DeltaIdentical

Interactive Size Converter

Select what size you wear in the Campus 14L to see your calculated size in the Harness 12R.

Recommended Size in Frye Harness 12R
US 8.5100% Match

Internal shoe cavity difference: 0.0 mm (snugger)

Complete Size Conversion Matrix

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

Campus 14L (US)Internal CavityHarness 12R EquivalentMatch AccuracyFit Difference
US 3.5244 mmUS 3.5100%0.0 mm
US 4247 mmUS 4100%0.0 mm
US 4.5251 mmUS 4.5100%0.0 mm
US 5254 mmUS 5100%0.0 mm
US 5.5257 mmUS 5.5100%0.0 mm
US 6261 mmUS 6100%0.0 mm
US 6.5264 mmUS 6.5100%0.0 mm
US 7271 mmUS 7100%0.0 mm
US 7.5274 mmUS 7.5100%0.0 mm
US 8277 mmUS 8100%0.0 mm
US 8.5281 mmUS 8.5100%0.0 mm
US 9284 mmUS 9100%0.0 mm
US 9.5287 mmUS 9.5100%0.0 mm
US 10291 mmUS 10100%0.0 mm
US 10.5294 mmUS 10.5100%0.0 mm
US 11297 mmUS 11100%0.0 mm
US 11.5301 mmUS 11.5100%0.0 mm
US 12304 mmUS 12100%0.0 mm
US 12.5307 mmUS 12.5100%0.0 mm
US 13311 mmUS 13100%0.0 mm
US 14317 mmUS 14100%0.0 mm

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Frequently Asked Questions

How does the Campus 14L size compare to the Harness 12R?

Both shoes share a very similar length profile. We recommend ordering your standard size in both. The Campus 14L has an internal fit offset of 4mm compared to 4mm for the Harness 12R.

Do these shoes fit wide feet comfortably?

The Campus 14L has a standard medium width profile, while the Harness 12R is standard medium.