Personalized Irish Shamrock Heart Women's V-Neck T-Shirt. A heart made of shamrocks with Irish in green text is a unique gift design for Valentine's Day, St. Patrick's Day, birthdays and the winter holidays. 5.0 oz., 100% pre-shrunk cotton Athletic Heather is 90/10 cotton/polyester 1x1 rib collar with mitered v-neck Shoulder-to-shoulder taping Ladies' fit