Our lucky Shamrocked baseball tee is perfect to keep you pinch proof every St. Patrick's Day. Designed to perform, our short sleeve performance tees are made from 100% moisture-wicking polyester interlock to keep athletes cool and dry. With a relaxed fit and UV protection, they make for a great tee for both on and off the baseball field. Personalize these tees by adding your team number to the back. These make for a winning gift idea for any occasion for both players and fans!