Schuberth C2 (XXL) in black, with Autocom advanced headset (ear speakers, mic, noise-cancelling mic at rear).
In 20 years, I've never found such a quiet helmet. I used to be a big Shoei fan because they usually fit my melon well, but the latest version of the RF series is ridiculously loud.
This was the first flip-up I've had, and I love it. I can't believe I found a flip-up that is quieter than any full face I've ever had. I think the biggest reason is just that the helmet seems to truly wrap around my head down further. Where most helmets stop somewhat open-ended at the jawline or so, this thing rounds down further and seems to "encase" my head more completely, reducing bottom-opening wind noise, and the joints fit tighter than on the Shoei (like around the shield) so there is less whistle there as well. Whenever I use the RF that I usually pawn off on my passenger (if I'm on a date), I am instantly reminded of the difference.
The other thing I love and have never seen on another helmet is the built-in, lever-controlled sun-shade minishield inside. No more screwing with sunglasses or changing out shields at sundown/sunrise if I ride all day. As easy as some have made them to change, the very carrying of extra shield(s) is a pain, as is having to stop and think which shield I currently have on the helmet before stepping out for a ride if I don't carry the extra in one of the side cases. One main shield, clear. Period. One mini shield inside (extends down to about nose level), medium smoked. Simple and wonderfully flexible with zero manipulation (past flicking the slide up or down on the side of my helmet).
I had to go a long way to find a dealer that carried them to try them on. Just as I was about to plunk down the $500+ for one, someone on FJROwners.com put one up for sale, in new condition, just my size, for half that. Sold. I love it so much, I have plans this summer to buy a second one, transfer my stuff over, and give this one to passengers, retiring the Shoei altogether (probably give it to my parents for their "guest snowmobile riders" collection in the barn.