Personalized 1st Birthday Race Car Boys Women's V-Neck T-Shirt. 1st Birthday race car boys Women's V-Neck T-Shirt - White has this little racer is one bday slogan with a colorful racing car and number 1 logo. 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