Oh, you guys are no fun. Ok I'll take my rant some where else. I didnt relise there was a special place for people like me. How exciting.
Best touring head gear for most climates is a traditional cycle cap. Great things, add a ear muff in cold weather, replace with balaclava in v. cold conditions. In really powefull sun (tropics)a straw hat works really well. Surprissingly iff you jam then on tight they stay on your head, even down hill.