Okay, again, I'm following my Cop Rule as far as what to wear in hot weather and what type of riding.
Commuting, slow, around town:
It's actually DOT and Snell approved. I wear aviator-style goggles and ditched the visor - it causes lift above 50 mph. Yes, I am older than most rocks and sometimes old habits are hard to break.
For faster riding, I have a Fulmer Modus 2 flip-up helmet. Some day, everyone's gonna have this style. It's very handy. But right now they're only DOT - even the $600 Schuberth that the cops wear is not Snell-approved.
I'm pondering picking up one of the following. Okay, so I'm a helmet whore.

KBC Dark Zombie

KBC Force RR A2

KBC Force S

Icon Domain
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"I hate to advocate drugs, alcohol, violence, or insanity to anyone, but they've always worked for me."
— HST