Celebrate St. Patrick's Day with our St. Patrick's Day Derby Hats. These festive green plastic hats feature a shamrock with the text 'On St. Patrick's Day I'm Irish'. Each package contains one hat, and there are 12 packages per case, making it ideal for larger gatherings. The hats measure 10.75" x 8.75" and are perfect for adding the perfect festive touch to any St. Patrick's Day celebration. With our discount pricing on bulk quantities, these St. Patrick's Day Derby Hats are a must-have for any holiday party planner. Get your St. Patrick's Day Derby Hats 12 ct today and make your celebration unforgettable.