True-to-Size Millimeter Sizing Comparison

Brooks Addiction GTS 15 vs Brooks Addiction Walker 2

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

Shoe Awomen
Brooks Addiction GTS 15
4.0(1,145 reviews)
Fit TendencyRuns Small (-4mm)
Width ProfileStandard (Medium)
View Full Addiction GTS 15 Breakdown
Shoe Bwomen
Brooks Addiction Walker 2
4.0(1,941 reviews)
Fit TendencyRuns Small (-4mm)
Width ProfileStandard (Medium)
View Full Addiction Walker 2 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 Addiction GTS 15 to see your calculated size in the Addiction Walker 2.

Recommended Size in Brooks Addiction Walker 2
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.

Addiction GTS 15 (US)Internal CavityAddiction Walker 2 EquivalentMatch AccuracyFit Difference
US 4.5229 mmUS 4.5100%0.0 mm
US 5233 mmUS 5100%0.0 mm
US 5.5236 mmUS 5.5100%0.0 mm
US 6239 mmUS 6100%0.0 mm
US 6.5243 mmUS 6.5100%0.0 mm
US 7246 mmUS 7100%0.0 mm
US 7.5249 mmUS 7.5100%0.0 mm
US 8253 mmUS 8100%0.0 mm
US 8.5256 mmUS 8.5100%0.0 mm
US 9263 mmUS 9100%0.0 mm
US 9.5266 mmUS 9.5100%0.0 mm
US 10269 mmUS 10100%0.0 mm
US 10.5273 mmUS 10.5100%0.0 mm
US 11276 mmUS 11100%0.0 mm

Related Comparisons

brooks ComparisonAddiction GTS 15 vs Adrenaline GTS 25View Sizing ComparisonDirect RivalryTree Runner vs Addiction Walker 2View Sizing ComparisonDirect RivalryAddiction Walker 2 vs Bondi Slip ResistantView Sizing ComparisonDirect RivalryWool Runner vs Addiction Walker 2View Sizing ComparisonDirect RivalryAddiction Walker 2 vs Fresh Foam Roav Running Shoe - Women'sView Sizing Comparison

Frequently Asked Questions

How does the Addiction GTS 15 size compare to the Addiction Walker 2?

Both shoes share a very similar length profile. We recommend ordering your standard size in both. The Addiction GTS 15 has an internal fit offset of -4mm compared to -4mm for the Addiction Walker 2.

Do these shoes fit wide feet comfortably?

The Addiction GTS 15 has a standard medium width profile, while the Addiction Walker 2 is standard medium.