Personalized Big Sis Christmas Sister Announcement Women's V-Neck T-Shirt. I'm going to be a Big Sis cute Christmas tree holiday sister announcement Women's V-Neck T-Shirt - Pink outfit for girls. 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