

The heel stack-a measure of everything between your foot and the road-is up to 39 mm, 7 mm taller than before. But v2 is way softer and springier than before, thanks to a much thicker midsole.

It fell short, mostly because the sole was thinner and just didn’t deliver a similar bouncy, propulsive ride. The v1 was an admirable first attempt at getting something in NB’s lineup that could compete with Nike’s Vaporfly. But, for v2 of this plated racer, New Balance rebuilt it from the ground up-all for the better. Typically, running shoes only see major updates every other year. We found that the Vaporweave just didn’t stretch at all-particularly a problem for those of us with high insteps-and created a lot of pressure late in a race.

The previous Vaporweave upper, a ripstop nylon–like material that didn’t absorb water, has been replaced with an engineered mesh. If you’re going long, you’ll appreciate the small yet important updates this version received. It’s the kind of package that allows elite marathoners to race well under five-minute pace, but we love that it delivers a screaming ride whenever we push it hard, even at shorter distances. The sole of the shoe is still where the magic happens, thanks to the exceptionally lightweight, soft, and springy ZoomX foam and rigid carbon-fiber plate that help you bound down the road with less effort. In fact, the changes to version 2 were limited just to the upper, focused on improving comfort and durability. When you make the world’s fastest shoe, you don’t mess it up.
