Personalized Dinosaur 1st Birthday Women's V-Neck T-Shirt. Happy birthday! A cute dinosaur wearing a birthday hat peeks around a 1. Cute gift for the one year old's 1st 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