Have Shamrock Style with St. Patrick's Day Party Hats! The Shamrock Pimp Hat is the perfect touch of Irish pride. A simple costume accessory that your guests will love. One size fits most. Approximately 20" circumference around inside of hat. Adjustable inside strap. Green pimp hat with shamrock print and green fuzzy trim. Assorted styles. Show your Shamrock Style with a St. Patrick's Day Costume! Dress your guests in green and gold from head to toe with our St. Patrick's Day costume accessories. Greet your guests at the door with a stylish St. Patrick's Day hat, or give green and gold feather boas away as a party favor at your event. Product Categories > Costumes > Hats > Novelty