Which is lighter, the Asics Novablast 1 or the Novablast 2?

The Asics Novablast 1, by 0.5 oz in a men's US 9 (9.2 oz vs 9.7 oz).

Do the Asics Novablast 1 and Novablast 2 come in the same widths?

Yes. Both run in D for men's sizes, so a width that fit in the Novablast 1 carries over to the Novablast 2.

How do the stack heights compare?

32 mm heel and 22 mm forefoot on the Asics Novablast 1, against 30 mm and 22 mm on the Novablast 2. That is 2 mm less under the heel and 0 mm less under the forefoot. See the stack height note in the table above: the published figures changed convention mid-lineage.

Is the Novablast 2 still the newest Novablast?

No. The Novablast 3 replaced it in 2022, so the Novablast 2 now sells as an older model and usually below its $130 list price.

Asics Novablast 1 vs Novablast 2

Updated August 2, 2026. Specs are men's US 9.

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Refined, same shoe

THE SHORT ANSWER

Whichever your size still exists in. The Novablast 1 is discontinued at retail, so remaining pairs sell against a thinning size run, while the Novablast 2 has a full one.

Asics Novablast 1Sizes running outMen's at Amazon Women's
Asics Novablast 2Sizes running outMen's at Amazon Women's

Availability last checked Aug 2, 2026. Prices and stock change without notice.

Novablast 1 · 2020

Novablast 2 · 2021

Every spec, side by side

Spec	Novablast 1	Novablast 2
FIT AND WEIGHT
Weight	9.2 oz	9.7 oz
	Claimed figures; testers weighed samples as high as 10.2 oz in US 10. The stability hardware cost half an ounce.
Widths	D	D
Upper	Two-layer jacquard mesh	Soft jacquard mesh with a gusseted tongue
CUSHIONING GEOMETRY
Heel stack	32 mm	30 mm
	The drop went from 10 to 8 mm, where the line has stayed since. Published figures for the original vary (RoadTrailRun says 32/22, Believe in the Run 31/21); either way the 2 sits a touch lower at the heel.
Forefoot stack	22 mm	22 mm
Drop	10 mm	8 mm
MATERIALS
Midsole	FF Blast (FlyteFoam Blast)	FF Blast on a reshaped, stabilized platform
	Same foam, new geometry: a filled-in waist, rear sidewalls and a larger external heel counter tamed the original's squirrelly heel.
VALUE
List price at launch	$130	$130

Weighing whether to switch at all, rather than which of these two to buy? What replaced the Asics Novablast 1 covers the verdict on the update, what loyalists made of it, and the closest alternatives from other brands.

Buy the Novablast 1

Sizes running out

Discontinued at retail. Amazon carries what remains, so treat an in-stock size as a closing window, and expect prices to swing.

Men's: Check remaining stock Women's: Check remaining stock

Availability last checked Aug 2, 2026.

Buy the Novablast 2

Sizes running out

Discontinued at retail. Amazon carries what remains, so treat an in-stock size as a closing window, and expect prices to swing.

Men's: Check remaining stock Women's: Check remaining stock

Availability last checked Aug 2, 2026.

Questions runners ask

Which is lighter, the Asics Novablast 1 or the Novablast 2?: The Asics Novablast 1, by 0.5 oz in a men's US 9 (9.2 oz vs 9.7 oz).
Do the Asics Novablast 1 and Novablast 2 come in the same widths?: Yes. Both run in D for men's sizes, so a width that fit in the Novablast 1 carries over to the Novablast 2.
How do the stack heights compare?: 32 mm heel and 22 mm forefoot on the Asics Novablast 1, against 30 mm and 22 mm on the Novablast 2. That is 2 mm less under the heel and 0 mm less under the forefoot. See the stack height note in the table above: the published figures changed convention mid-lineage.
Is the Novablast 2 still the newest Novablast?: No. The Novablast 3 replaced it in 2022, so the Novablast 2 now sells as an older model and usually below its $130 list price.