Like many of us that frequent this sub-forum, I, too, have grown too tall for my hair.
If it's cold, I slip a waterproof (and sunproof) cover over my helmet just to keep the cold wind out. But in warmer, humid weather the lack of ventilation causes the formation of my own little weather systems inside the helmet - the rain isn't too bad, but the thunder and lightning can be quite annoying.
Is there such a thing as a sort of thin beenie type of cap that con be donned under the helmet?
What do the rest of you folks so afflicted do to avoid the "Alien Brain" pattern becoming sunburned to to one's scalp?