Funny Party Hats Felt Stovepipe Party Hats for Any Occasion TM The Felt Mardi Gras Stovepipe Hat measures 12 inches by 24 inches. Felt striped Mardi Gras stovepipe hat in traditional colors - green, purple, yellow. Hat has a 24 inch circumference - one size fits most adults. Ideal for theme parties, Halloween costumes, masquerade balls, parades. Wear this on Madri Gras and stand out!