Balmorals, tams, an occasional beret or caubeen, or the ever present (sorry Jock) flat cap with the kilt. Almost never without a cover outdoors these days---too much sun or cold for my thinning pate. Fedoras and ball caps otherwise when not kilted. Bike helmet when on two wheels, crani-saver when on my sled (snowboard). Heck I even wear an OR scrub hat at least part of the time when I am doing procedures at work.

j