Personalized Princess 1st Birthday Women's V-Neck T-Shirt. Pink Princess 1st birthday. This pink heart with a jeweled tiara will make your baby girl's first b-day special. Happy birthday 1-year-old! 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