Should I size up in ASICS running shoes?

Most runners find ASICS shoes fit true to size, but individual models vary. Use RunSized to check community reports for the specific shoe you're considering.

How does ASICS sizing compare to other brands?

Sizing varies between ASICS models. Use the RunSized comparison tool to see how ASICS shoes compare to other brands you already own.

ASICS Shoe Sizing Guide — Do ASICS Shoes Run True to Size?

Q: Do ASICS shoes run true to size?

Based on community reports from RunSized runners, ASICS shoes generally run true to size. Check individual shoe pages for specific sizing data.

Based on community reports from 60 runners, here's what you need to know about ASICS sizing. We have data on 20 ASICS shoe models.

ASICS Shoes Sizing Data

Shoe	Sizing	Reports	Compare
Asics Novablast	True to size	10 reports	Compare sizes
Asics Novablast	True to size	10 reports	Compare sizes
Asics Metaspeed Edge+	True to size	8 reports	Compare sizes
Asics Gel-Nimbus	True to size	6 reports	Compare sizes
Asics Superblast	True to size	6 reports	Compare sizes
Asics Gel-Cumulus	True to size	4 reports	Compare sizes
Asics Metaspeed Sky+	Runs short	4 reports	Compare sizes
Asics Gel-Nimbus	True to size	3 reports	Compare sizes
Asics Gel-Trabuco	True to size	3 reports	Compare sizes
Asics Superblast	True to size	2 reports	Compare sizes
Asics Gel-Cumulus	True to size	1 report	Compare sizes
Asics Gel-Kayano	Slightly long	1 report	Compare sizes
Asics Gel-Kayano	True to size	1 report	Compare sizes
Asics GT-2000	True to size	1 report	Compare sizes
Asics Gel-Nimbus	No data yet	—	Compare sizes
Asics Gel-Pulse	No data yet	—	Compare sizes
Asics Gel-Pulse	No data yet	—	Compare sizes
Asics Gel-Trabuco	No data yet	—	Compare sizes
Asics GT-1000	No data yet	—	Compare sizes
Asics GT-2000	No data yet	—	Compare sizes

ASICS Sizing FAQ

Do ASICS shoes run true to size?

Most ASICS shoes run true to size based on community data. Of the 14 models with reports, 12 run true to size, 1 run long, and 1 run short.

Should I size up in ASICS?

ASICS Nimbus runs true to size with a generous fit. Novablast tends to run slightly short — size up 0.5. Kayano is slightly narrower than Nimbus. Check the model page for specifics.

How accurate is this ASICS sizing data?

All sizing data on RunSized is sourced from real runners who've worn both a reference shoe and a ASICS shoe. We show confidence tiers — more reports means more reliable data. With 60 ASICS-related reports, the data gives you a solid starting point.

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