Personalized 4th Birthday Rocket Women's V-Neck T-Shirt. Blast off into a happy fourth birthday with a red rocket, shooting stars, and astronaut celebrating the four year old's 4th 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