I’m not sure whether this is due to the lighter weight, or the second Zoom Air unit, but it’s springier underfoot. When it comes to underfoot feel, the Pegasus 39 just feels more exciting. That said, I’d argue the firmer midsole gives the shoe a certain versatility that you want from an everyday running shoe

Neither shoe feels overly plush underfoot - the React foam isn’t particularly soft, especially compared to the Zoom X foam used in the Nike Invincible Run. Obviously this is a marginal difference, but combined with the double air unit, the shoe definitely feels faster. Talking of weight, the Pegasus 39 is lighter - the women’s US 8 weighs in at 231g, compared to the 235g in the Pegasus 38. This gives the Pegasus 39 more of a snap and a little more energy return.Īlthough both shoes are fantastic for easy miles, the Pegasus 39 definitely has enough bounce to pick up the pace during tempo sessions, whereas the Pegasus 38 just felt a little heavier underfoot. Nike has added a second Zoom Air unit to the heel of the Pegasus 39 the 38 has a forefoot unit for a responsive toe-off, but the Pegasus 39 has both a forefoot Zoom Air unit and a second in the rear of the shoe. Here’s where things get a little different - during testing, I found the Pegasus 39 had a lot more ‘pop’ underfoot than the previous iterations of the shoe. Nike Pegasus 39 vs Nike Pegasus 38: Performance All-in-all, we found the Pegasus 39 a better fitting shoe.

Nike zoom pegasus women