I usually wear a half helmet and have owned quite a few different brands. The last one was a Skid Lid made by Fulmer , I think. They all "parachuted", had a lot of wind resistance and felt heavy in a cross wind. They all gave the "mushroom head" look. I gave the year old Skid Lid to my nephew.

Well I still wear a half helmet, I bought a HCI "Retro" helmet, actually two. They have none of those problems, fairly snug to the head and low profile, no " mushroom head". Besides they're DOT approved, light, good looking and cheap. As far as wind noise, never hear wind noise, I've got Septres.

Every normal man must be tempted, at times, to spit on his hands, hoist the black flag, and begin slitting throats. H. L. Mencken