After some solar skin damage on my baldy heid I seldom venture out without a covering, on Doctor's advice. Don't have a flat cap I fear Nisse, however my favourite head gear is a nicely shaped Breton cap from Nauticalia whivh can be smart or casual depending on whether I'm wearing a windcheater or a reefer jacket. Greatly underestimated in my view, a nice cap/hat you like.
JohnnyO. o/