Personalized T-Rex Balloon Birthday Women's V-Neck T-Shirt. A cute T-Rex dinosaur wearing a birthday hat has a balloon tied to its tail. It is singing and playing the guitar, wishing you a happy birthday! 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