Personalized Sister Announcement Big Sis Unicorn Face Women's V-Neck T-Shirt. This adorable unicorn design is a sweet way to announce that your daughter will be a big sister. 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