True-to-Size Millimeter Sizing Comparison

Salomon Speedcross 6 GTX vs Salomon Speedcross 6

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

Shoe Aunisex
Salomon Speedcross 6 GTX
4.6(534 reviews)
Fit TendencyRuns Small (-4mm)
Width ProfileStandard (Medium)
View Full Speedcross 6 GTX Breakdown
Shoe Bunisex
Salomon Speedcross 6
4.5(471 reviews)
Fit TendencyTrue to Size
Width ProfileStandard (Medium)
View Full Speedcross 6 Breakdown
Fit Verdict

Speedcross 6 Runs Slightly Larger

The Speedcross 6 provides about 4mm more internal length than the Speedcross 6 GTX. We suggest ordering 1/2 size down in Speedcross 6.

Length Delta+4 mm
Width DeltaIdentical

Interactive Size Converter

Select what size you wear in the Speedcross 6 GTX to see your calculated size in the Speedcross 6.

Recommended Size in Salomon Speedcross 6
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.

Speedcross 6 GTX (US)Internal CavitySpeedcross 6 EquivalentMatch AccuracyFit Difference
US 3.5236 mmUS 3.553%+4.0 mm
US 4239 mmUS 3.588%+1.0 mm
US 4.5243 mmUS 4100%0.0 mm
US 5246 mmUS 4.588%+1.0 mm
US 5.5249 mmUS 588%+1.0 mm
US 6253 mmUS 5.5100%0.0 mm
US 6.5256 mmUS 688%+1.0 mm
US 7263 mmUS 6.565%-3.0 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 1376%-2.0 mm

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Frequently Asked Questions

How does the Speedcross 6 GTX size compare to the Speedcross 6?

The Speedcross 6 provides about 4mm more internal length than the Speedcross 6 GTX. We suggest ordering 1/2 size down in Speedcross 6. The Speedcross 6 GTX has an internal fit offset of -4mm compared to 0mm for the Speedcross 6.

Do these shoes fit wide feet comfortably?

The Speedcross 6 GTX has a standard medium width profile, while the Speedcross 6 is standard medium.