Seriously best helmet I've ever owned.
http://www.bikerhelmets.com/the-micro-slim-smallest-lightest-dot-beanie-helmet-flat-black-no-peak/
Buffeting can be a number of things ... But a great half helmet is the bell pit boss ... Adjusts to the back of your head ... Stays snug.
I 2nd the Pit Boss. I own one and have no buffeting. It is very comfortable and I can ride 8 hours with no headaches. I have a 2016 SGs changed the windshield to a Klockwerks 5.5. I do get a small amount of buffeting with my Shoei RF-1200 full face helmet. I'm 5.11
Wife wears the Pit Boss I wear a Akoury AK-1 neither one fits in the saddlebags..