True-to-Size Millimeter Sizing Comparison

Caterpillar 2nd Shift Steel Toe vs Caterpillar Resorption Waterproof Composite Toe

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

Shoe Aunisex
Caterpillar 2nd Shift Steel Toe
4.0(242 reviews)
Fit TendencyTrue to Size
Width ProfileStandard (Medium)
View Full 2nd Shift Steel Toe Breakdown
Shoe Bmen
Caterpillar Resorption Waterproof Composite Toe
4.0(250 reviews)
Fit TendencyRuns Large (+4mm)
Width ProfileStandard (Medium)
View Full Resorption Waterproof Composite Toe Breakdown
Fit Verdict

Resorption Waterproof Composite Toe Runs Slightly Larger

The Resorption Waterproof Composite Toe provides about 4mm more internal length than the 2nd Shift Steel Toe. We suggest ordering 1/2 size down in Resorption Waterproof Composite Toe.

Length Delta+4 mm
Width DeltaIdentical

Interactive Size Converter

Select what size you wear in the 2nd Shift Steel Toe to see your calculated size in the Resorption Waterproof Composite Toe.

Recommended Size in Caterpillar Resorption Waterproof Composite Toe
US 8100% Match

Internal shoe cavity difference: 0.0 mm (snugger)

Complete Size Conversion Matrix

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

2nd Shift Steel Toe (US)Internal CavityResorption Waterproof Composite Toe EquivalentMatch AccuracyFit Difference
US 3.5240 mmUS 70%+31.0 mm
US 4243 mmUS 70%+28.0 mm
US 4.5247 mmUS 70%+24.0 mm
US 5250 mmUS 70%+21.0 mm
US 5.5253 mmUS 70%+18.0 mm
US 6257 mmUS 70%+14.0 mm
US 6.5260 mmUS 70%+11.0 mm
US 7267 mmUS 753%+4.0 mm
US 7.5270 mmUS 788%+1.0 mm
US 8273 mmUS 7.588%+1.0 mm
US 8.5277 mmUS 8100%0.0 mm
US 9280 mmUS 8.588%+1.0 mm
US 9.5283 mmUS 988%+1.0 mm
US 10287 mmUS 9.5100%0.0 mm
US 10.5290 mmUS 1088%+1.0 mm
US 11293 mmUS 10.588%+1.0 mm
US 11.5297 mmUS 11100%0.0 mm
US 12300 mmUS 11.588%+1.0 mm
US 12.5303 mmUS 1288%+1.0 mm
US 13307 mmUS 12.5100%0.0 mm
US 14313 mmUS 1376%-2.0 mm

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Frequently Asked Questions

How does the 2nd Shift Steel Toe size compare to the Resorption Waterproof Composite Toe?

The Resorption Waterproof Composite Toe provides about 4mm more internal length than the 2nd Shift Steel Toe. We suggest ordering 1/2 size down in Resorption Waterproof Composite Toe. The 2nd Shift Steel Toe has an internal fit offset of 0mm compared to 4mm for the Resorption Waterproof Composite Toe.

Do these shoes fit wide feet comfortably?

The 2nd Shift Steel Toe has a standard medium width profile, while the Resorption Waterproof Composite Toe is standard medium.