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 also released the new Pegasus in a version that includes its new FlyEase tech, which allows runners to get in and out of the show more easily.Winner: Nike Pegasus 39. And, at $120, it's a comfy (the theme continues) entry point into higher-end running shoes. Even with these features, the Peg 38 is plenty responsive. Comfort is the name of the game here - the sole is squishy enough to want to walk around in long after your last 'official' mile, and the new lacing architecture locks the foot onto it but has just enough give to avoid pesky pressure points. We've had an early sample of the shoe in our hands - er, on our feet - for a few weeks now and can attest that the 38 does indeed carry on the Pegasus's feel-good tradition.

That same runner also noted that compared to previous iterations, the 37's sole was 'softer and springier, but less responsive,' making it 'a no-nonsense running shoe for easy days.' Nike carried these components, which include the company's durable React foam and an airbag in the forefoot. The change will likely be a welcome one - one of our tester's critiques of the Peg 37 was that its upper was too supportive. Nike also gave the new Pegasus a mesh upper that differs from recent iterations.

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