Personalized Irish Shamrock Green Text Women's V-Neck T-Shirt. A green shamrock made from the word Irish and small shamrocks is a unique gift design for St. Patrick's Day and Celtic festivals. 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