Personalized Green Irish Shamrock Light Outline Women's V-Neck T-Shirt. A shamrock of different shades of green is a unique gift design to show their Irish pride on St. Patrick's Day. 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