Have a Skully Helmet in Large, received it about 2-3 weeks ago, Fits well but too tight, and I've tried the XL which was too loose for me, I wore it once to try it out, in 60 degree New England weather, for about an hour. It works well, I have installed the pinlock lens that it comes with, backup camera works great, voice prompts work well. Comes with helmet bag, and ballistic case. I have it up on Ebay for 1300+50 dollars for shipping(I think it's the only one on there at the moment). I normally wear 59/60 from Shark/shuberth, and this one is a bit tight, it does come with extra velcro paddings that you can put it, so someone with a smaller head than me can still have it fit. Quiet and vents well. If anyone is interested let me know.