Personalized Irish Green bowler hat Women's V-Neck T-Shirt. Irish Bowler Hat Women's V-Neck T-Shirt - White with green shamrock for St Patricks 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