... Howdy ... I have a hjc flip face ... It is very comfortable has front and top vents ... When closed it does generate wind noise , but with the visor open it lessens the noise ... Happy trails ...
Even with full/flip helmets, IMHO, ear plugs are a requirement! Believe it or not, you hear more things you should hear and less of the things you shouldn't(wind, etc.)
I'm not talking cheapies here, you would be amazed at what a properly fitted set of professionally made ear plugs would do for you.
So not to highjack the thread, wife and I have both switched to HJC modular helmets. Both of us find them very comfortable.
Although not a reason to buy HJC, it is very easy to install headsets in the HJC helmet!