Personalized Robot 1st Birthday Women's V-Neck T-Shirt. Little robot 1st birthday I'M ONE Women's V-Neck T-Shirt - White with cute robot, stars and red planet with the number 1. 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