The One Coat Geezers and Skaters Can Agree On Who Did It Best: Supreme / We call these loose-fitting topcoats “grandpa coats” because they look stolen from your dad's dad's closet. But what's funny is that the best one we saw came from legendary skate brand Supreme. That means, for the first time ever, there's one perfect coat for grandpas, skaters, grandpa skaters, and you.