The poc's look really nice and fit excellent and offer a life time warranty,But I work in a shop and I never in my life seen so many helmets(poc's) come back broken swede company,But made in China. The shell's seem to be cracken when hitting gates or if you crash. Granted a helmet is only good for one inpact.
My self I wish Briko was still imported into the states they are by far the best made helmets on the market plus they even offer a carbon fiber.
I don't Know to much about the fit of Dainese,But there stuff is from Italy and is top dallor so my guess it's got to be good kinda like Briko.
As for red/burton it's all made in China and fits ok.
Troy Lee helmets are all from China as well and seem to fit pretty good.