Which is lighter, the Nike Pegasus 38 or the Pegasus 39?

The Pegasus 39, by 0.9 oz in a men's US 9 (9.3 oz vs 10.2 oz).

Did the price change between the Nike Pegasus 38 and the Pegasus 39?

Yes. List price went up $10, from $120 to $130. Street prices differ: the older shoe usually sells under list once its successor ships.

Do the Nike Pegasus 38 and Pegasus 39 come in the same widths?

Yes. Both run in D, 2E, 4E for men's sizes, so a width that fit in the Pegasus 38 carries over to the Pegasus 39.

How do the stack heights compare?

28 mm heel and 18 mm forefoot on the Nike Pegasus 38, against 33 mm and 23 mm on the Pegasus 39. That is 5 mm more under the heel and 5 mm more under the forefoot.

Is the Pegasus 39 still the newest Pegasus?

No. The Pegasus 40 replaced it in 2023, so the Pegasus 39 now sells as an older model and usually below its $130 list price.

Nike Pegasus 38 vs Pegasus 39

Updated July 1, 2026. Specs are men's US 9.

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Refined, same shoe

THE SHORT ANSWER

Whichever your size still exists in. The Pegasus 38 is discontinued at retail, so remaining pairs sell against a thinning size run, while the Pegasus 39 has a full one. The Pegasus 38 also lists $10 lower.

Pegasus 38 · 2021

Pegasus 39 · 2022

Every spec, side by side

Spec	Pegasus 38	Pegasus 39
FIT AND WEIGHT
Weight	10.2 oz	9.3 oz
	A lighter mesh and a trimmed midsole did the work. This is the change you feel most.
Widths	D, 2E, 4E	D, 2E, 4E
Upper	Padded engineered mesh with a wider toebox and a traditional tongue	Slim engineered mesh with midfoot lacing bands
CUSHIONING GEOMETRY
Heel stack	28 mm	33 mm
Forefoot stack	18 mm	23 mm
Drop	10 mm	10 mm
MATERIALS
Midsole	React foam with a forefoot Zoom Air unit	React foam with Zoom Air units under heel and forefoot
VALUE
List price at launch	$120	$130
	The first Pegasus price bump in years.
OTHER CHANGES
Zoom Air	Forefoot unit only	Heel and forefoot units
	Heel strikers get a touch more bounce at contact. Forefoot strikers will not feel a difference.
Midfoot fit	Roomy and padded	Slimmer, with lacing bands that wrap the arch
	Narrow feet loved it. Wide feet needed the 2E.

Weighing whether to switch at all, rather than which of these two to buy? What replaced the Nike Pegasus 38 covers the verdict on the update, what loyalists made of it, and the closest alternatives from other brands.

Buy the Pegasus 38

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 stock is gone.

Availability last checked Jul 1, 2026.

Buy the Pegasus 39

Stocked at Amazon

Men's: Check price at Amazon Women's: Check remaining stock

Availability last checked Jul 1, 2026.

Questions runners ask

Which is lighter, the Nike Pegasus 38 or the Pegasus 39?: The Pegasus 39, by 0.9 oz in a men's US 9 (9.3 oz vs 10.2 oz).
Did the price change between the Nike Pegasus 38 and the Pegasus 39?: Yes. List price went up $10, from $120 to $130. Street prices differ: the older shoe usually sells under list once its successor ships.
Do the Nike Pegasus 38 and Pegasus 39 come in the same widths?: Yes. Both run in D, 2E, 4E for men's sizes, so a width that fit in the Pegasus 38 carries over to the Pegasus 39.
How do the stack heights compare?: 28 mm heel and 18 mm forefoot on the Nike Pegasus 38, against 33 mm and 23 mm on the Pegasus 39. That is 5 mm more under the heel and 5 mm more under the forefoot.
Is the Pegasus 39 still the newest Pegasus?: No. The Pegasus 40 replaced it in 2023, so the Pegasus 39 now sells as an older model and usually below its $130 list price.