Look, I gotta big head, like 7-3/4 big. That said, they're a bit snug at first, but all 'one-size-fits-all' ball caps are on me, pushing velcro straps and those ones with the holes to their limit, or beyond. But after a few days, they get more comfortable. I use them year-round, even in extreme (well, Ohio) cold; my bald head has to breathe!
Rating: [5 of 5 Stars!]