Personalized Dinosaur 6th Birthday Women's V-Neck T-Shirt. Sixth Birthday Dinosaur Women's V-Neck T-Shirt - Aqua has green dino, number 6, and room to personalize for a fun 6th birthday party gift. 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