Personalized Green Irish Shamrock Clover Women's V-Neck T-Shirt. Irish Green Shamrock Clover Women's V-Neck T-Shirt - White St. Patrick's Day holiday design. 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