One size fits all (OSFA) with plastic snap closure. 55% Cotton, 45% Polyester. This is probably one of the only Justice League baseball caps made for a long time. It's a super cap with a distressed screen printing of the Justice League symbol on the front and a really cool image of the JLA, off-center, of course, under the bill. This is a rare Justice League hat to find and they are no longer being made.