Personalized 8th Birthday Party Unicorn Women's V-Neck T-Shirt. 8th birthday girls unicorn Women's V-Neck T-Shirt - Aqua with this girl is 8 quote. 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