I don't know how large they go in their sizes, but I just bought an outlaw ultra-slim helmet from leatherup.com. It was the 3rd helmet I've purchased in the last month or so as I was searching for a DOT half-helmet that didn't look like a mushroom. I wear size large, and in that size, it was much smaller and better looking than the Vega or the half-helmet beanie from Dennis Kirk

Just FYI.....

 

i have trouble finding a helmet that fits. i do have a no name DOT moto-x helmet size xxxxl
that i can get on but it gives me a headache after about a mile and a half. i have a 2x hjc full face helmet that i pulled all the padding out of.. just the shell fit down to my mouth. i tried a xl novilty helmet on yesterday, it looked like a kids helmet on me, just sat on top of my head.. i have a 8 3/4 (biggest i have found) leather hat that fits real tight.. if they ever make helmets mandatory in ohio i am going to be in serious trouble.

 

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real big