

The outsole of the Nike Air Zoom Pegasus 39 is very similar to the Pegasus 38 with some slight tweaks in the pattern. I’d recommend all wide footers go with the wide version if they’re looking to try the Pegasus 39. The Nike Air Zoom Pegasus 39 is still on the narrower side of shoes but is available in a wide version. The upper is probably my favorite part of this shoe.

And while I don’t love Flywire strand lacing, it does what it’s supposed to do and keeps the midfoot secure. The Achilles padding increases significantly in a way that feels great and helps keep the heel down inside the shoe and improves overall lockdown. The lighter upper of the Nike Air Zoom Pegasus 39 puts less material on top of your foot but keeps the fully gusseted, nicely padded tongue. It’s the sort of barely-there but supportive upper that runners crave. Nike took three layers down to two and the difference is very noticeable during hot, humid summer miles. The Pegasus 38 was comfortable, but the Pegasus 39 is comfortable, super lightweight, and more breathable. While any upper is an improvement over the debacle that was the Nike Pegasus 37 upper, the Nike Air Zoom Pegasus 39 takes the upper improvements of the Pegasus 38 to a new level.

