St Patricks Day Green Irish Stovepipe Costume Hat - 24 in a pack The Green & White Stove Top Hat is the perfect touch of Irish pride. Show your Shamrock Style with a St. Patrick's Day Costume! Approximately 20 1/2" circumference around inside of hat. Made of felt. 11" tall. Green and white horizontal striped. Greet your guests at the door with a stylish St. Patrick's Day hat,