Personalized Monkey First Birthday Women's V-Neck T-Shirt. It's my first birthday! This cute little monkey is celebrating his 1st bday! 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