Apart from the contradiction there, you already -have- hats for these purposes, or these purposes would have come up in your original request. You’re looking for a hat for which -neither of these conditions apply-, or else they would have entered into your specification.
That’s not necessarily true. These conditions may have been necessary but not sufficient conditions.
They can be necessary but not sufficient conditions for buying a hat. The issue is that even once those conditions are met, those two reasons aren’t merely reasons for buying a hat, but important specifications for the hat you are going to buy. If your goal is to prevent heat stroke, a hat that keeps you warm in the winter is counterproductive.
(I have owned quite a few hats, and used to wear one most of the time in public—in my college years a bowler, later a fedora, by which I mean a fedora and not a trilby. I donated most of them after realizing the effect they were having on my mood. At this point I own two hats; one is a black oilcloth hat for rain and costumes, and the other one is a fabric hat for sun.)
Somewhat old post but...
That’s not necessarily true. These conditions may have been necessary but not sufficient conditions.
They can be necessary but not sufficient conditions for buying a hat. The issue is that even once those conditions are met, those two reasons aren’t merely reasons for buying a hat, but important specifications for the hat you are going to buy. If your goal is to prevent heat stroke, a hat that keeps you warm in the winter is counterproductive.
(I have owned quite a few hats, and used to wear one most of the time in public—in my college years a bowler, later a fedora, by which I mean a fedora and not a trilby. I donated most of them after realizing the effect they were having on my mood. At this point I own two hats; one is a black oilcloth hat for rain and costumes, and the other one is a fabric hat for sun.)