I do have the hit air, got the silver mesh jacket and no challenger I havent
tested it out on the ground yet

My avatar shows my old rocket jacket from 8 yrs ago
The armor is CE, much better fit than the joe rocket for me and the armor is
better quality than what is in my killamanjaro. Was comfortable up to the high 90's on the ride down south
I wear the mesh jacket year round, just when its cold I put a ski shirt under a fleece and
use the windproof/waterproof liner from my rocket jacket
bought it from bikebone 2 yrs ago after I broke my rib after hitting oil in a turn.
Think it was 299. when I bought it, its more now
They also have a vest, the product was 1st thought up for riding horses but its a great idea
for riding a bike IMHO If you fly over the bike, there is plenty of time for it to inflate before you land
it protects your ribs, neck and to a lesser degree your hips and pelvis