True-to-Size Millimeter Sizing Comparison

KEEN Newport H2 vs Reebok Classic Leather

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

Shoe Amen
KEEN Newport H2
5.0(3,249 reviews)
Fit TendencyRuns Small (-4mm)
Width ProfileStandard (Medium)
View Full Newport H2 Breakdown
Shoe Bunisex
Reebok Classic Leather
4.6(6,454 reviews)
Fit TendencyTrue to Size
Width ProfileNarrow
View Full Classic Leather Breakdown
Fit Verdict

Classic Leather Runs Slightly Larger

The Classic Leather provides about 4mm more internal length than the Newport H2. We suggest ordering 1/2 size down in Classic Leather.

Length Delta+4 mm
Width Delta-3 mm

Interactive Size Converter

Select what size you wear in the Newport H2 to see your calculated size in the Classic Leather.

Recommended Size in Reebok Classic Leather
US 1088% Match

Internal shoe cavity difference: +1.0 mm (slightly roomier)

Alternate option if between sizes: US 9.5 (65% match)

Complete Size Conversion Matrix

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

Newport H2 (US)Internal CavityClassic Leather EquivalentMatch AccuracyFit Difference
US 7263 mmUS 753%+4.0 mm
US 7.5266 mmUS 788%+1.0 mm
US 8269 mmUS 7.588%+1.0 mm
US 8.5273 mmUS 8100%0.0 mm
US 9276 mmUS 8.588%+1.0 mm
US 9.5279 mmUS 988%+1.0 mm
US 10283 mmUS 9.5100%0.0 mm
US 10.5286 mmUS 1088%+1.0 mm
US 11289 mmUS 10.588%+1.0 mm
US 11.5293 mmUS 11100%0.0 mm
US 12296 mmUS 11.588%+1.0 mm
US 12.5299 mmUS 1288%+1.0 mm
US 13303 mmUS 12.5100%0.0 mm
US 14309 mmUS 1453%+4.0 mm

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Frequently Asked Questions

How does the Newport H2 size compare to the Classic Leather?

The Classic Leather provides about 4mm more internal length than the Newport H2. We suggest ordering 1/2 size down in Classic Leather. The Newport H2 has an internal fit offset of -4mm compared to 0mm for the Classic Leather.

Do these shoes fit wide feet comfortably?

The Newport H2 has a standard medium width profile, while the Classic Leather is snug/narrow.