No rocket science here: hundreds of perforations in the otherwise sturdy full-grain leather help air circulate through these boots, keeping the user from overheating, and keeping away the stank that can develop after spending all day in a waterproof motorcycle boot on a hot day.

Like all the TCX boots we carry, these come with a CE certification, the European safety rating that means they pass certain side-crush tests, a sole adhesion test, and that the ankle armor is up to factory spec.

Like their best-selling waterproof sibling, the Street Ace WP, these Street Ace Air boots have reinforced heel and toe counters and discreet ankle armor. They end up being slightly more flexible and comfortable out of the box because of their lack of built-in waterproof membrane, but the comfort and quality are consistent with what is our best-selling boot brand. Like the Street Ace WP's, and all the TCX boots we carry, these run a bit on the large size but they come with a paper-thin insoles. If you’re between sizes or just want a tighter fit, consider adding any over-the-counter insole to help take up some volume.

We wish these boots came in black, but the dark anthracite gray is close enough. They could be pink and we'd still consider them a staple of our summer offerings, because they’re hands-down the coolest-running boot we've ever sold.