Product Description Instant Irishman Men'sT-Shirt. There is no better way to show your St. Patrick's Day spirit then with some crazy flair. This St. Patrick’s Day green men's T-Shirt is a must have March 17th. Makes a great party favor or give away for bars. This St.Patrick's Day green men's T-Shirt is the perfect choice for your upcoming St.Patricks Day Event. Please call us for special holiday discounts so you can deck out your whole event with festive ST.Patrick's Day merchandise.