Both. I see them all over at Disney World and don't bat an eye.
Anyone who judges fannypack wearers (or judges anything as a "fashion don't" for that matter) has their priorities in the wrong place. In my opinion, there is absolutely NO BETTER PARK BAG in Disney World. It is effortless to wear, can go on all the attractions with you, keeps your valuables where you can see them, stays dry on wet rides (due to the material, and the fact that it is on a part of the body typically protected by lap bars and whatnot), can't get accidentally set down and left somewhere, is easy to access, and is just the right size to hold the essentials.
DH and I have switched to other things (he to cargo shorts with pockets, and I to a small crossbody purse), solely for the sake of fashion, but I still can't deny that the classic " pack" was always a better and more practical solution.