True-to-Size Millimeter Sizing Comparison

ASICS GEL-Contend 9 vs ASICS Novablast 5

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

Shoe Aunisex
ASICS GEL-Contend 9
4.2(286 reviews)
Fit TendencyRuns Small (-4mm)
Width ProfileStandard (Medium)
View Full GEL-Contend 9 Breakdown
Shoe Bmen
ASICS Novablast 5
5.0(317 reviews)
Fit TendencyRuns Small (-4mm)
Width ProfileStandard (Medium)
View Full Novablast 5 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 GEL-Contend 9 to see your calculated size in the Novablast 5.

Recommended Size in ASICS Novablast 5
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.

GEL-Contend 9 (US)Internal CavityNovablast 5 EquivalentMatch AccuracyFit Difference
US 3.5236 mmUS 70%+27.0 mm
US 4239 mmUS 70%+24.0 mm
US 4.5243 mmUS 70%+20.0 mm
US 5246 mmUS 70%+17.0 mm
US 5.5249 mmUS 70%+14.0 mm
US 6253 mmUS 70%+10.0 mm
US 6.5256 mmUS 717%+7.0 mm
US 7263 mmUS 7100%0.0 mm
US 7.5266 mmUS 7.5100%0.0 mm
US 8269 mmUS 8100%0.0 mm
US 8.5273 mmUS 8.5100%0.0 mm
US 9276 mmUS 9100%0.0 mm
US 9.5279 mmUS 9.5100%0.0 mm
US 10283 mmUS 10100%0.0 mm
US 10.5286 mmUS 10.5100%0.0 mm
US 11289 mmUS 11100%0.0 mm
US 11.5293 mmUS 11.5100%0.0 mm
US 12296 mmUS 12100%0.0 mm
US 12.5299 mmUS 12.5100%0.0 mm
US 13303 mmUS 13100%0.0 mm
US 14309 mmUS 14100%0.0 mm

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Frequently Asked Questions

How does the GEL-Contend 9 size compare to the Novablast 5?

Both shoes share a very similar length profile. We recommend ordering your standard size in both. The GEL-Contend 9 has an internal fit offset of -4mm compared to -4mm for the Novablast 5.

Do these shoes fit wide feet comfortably?

The GEL-Contend 9 has a standard medium width profile, while the Novablast 5 is standard medium.