Have Shamrock Style with a St. Patrick's Day Kilt! The St. Pat's Irish kilt is the perfect touch of Irish pride. A simple St. Patrick's Day costume accessory that your guests will love. One size fits most adults. One size fits most adults; 34" - 40". 20" long. Made of polyester. Velcro closure. Show your Shamrock Style with 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. Part of Holidays > St. Patrick's Day > St. Patrick's Day Accessories