Top your merry-making with a Frothy Beer Hat! This novelty adult St. Patrick's Day hat looks like a giant mug of green beer, complete with metallic gold handle and trim, and plush "foam" overflowing from the top. Frothy Beer Hat has a flexible fitted cap inside to keep it securely on your head when you hit the pub. Made of 100% Polyester. Beer hat measures 10in tall and has a 6in circumference. One size fits most adults.