NYC Helmet, I’m Giddy With Excitement
yankodesign.com
yankodesign.com
"Most bike helmets are made of EPS foam with a thin plastic shell. The shell helps the helmet skid easily on rough pavement to avoid jerking your neck....
Beware of gimmicks. You want a smoothly rounded outer shell, with no sharp ribs or snag points."
I don't think a hat over a helmet is going to skid as easily as slick plastic. Also, "Dark helmets are hard for motorists to see," and this helmet looks like it only comes in black.
Camouflage green and grey do not seem like strikingly good color choices. They wont even go well with the crimson red blood splat you'll leave under the truck that turned right and didnt notice you.