The mesh on the "foot shaped" front of this shoe was an incredibly crazy surprise. It's 30-40 degrees in Baltimore at the time of writing this in December 2017 and as soon as I walked outside, I could feel the cold air on the front third of my foot, which, again, was surprisingly really cool.
The mesh literally gives your foot room to breathe.
The entirety of this shoe is awesomely lightweight considering how cushioned it is with Altra's new Max-LT midsole compound.
Aesthetically speaking... this shoe ticks all my marks. It's not bulky. It uses the bright yellows and blues well against the darker blue tones, and the tongue is suede!