Personalized Twice As Lucky Women's V-Neck T-Shirt. Irish Engineer, twice as lucky. Anyone can find a four leaf clover but you'll need an engineer to come up with a better, luckier, eight leaf specimen. Fun gift for birthdays, holidays and graduation. 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