Personalized I'm 1 Purple Monster Birthday Women's V-Neck T-Shirt. I'm 1! A cute little purple monster lets everyone know that it is finally one year old on its birthday. Adorable gift. 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