Personalized This Little Monster is One Women's V-Neck T-Shirt. This Little Monster is One! A cute little green monster smiles because it is now one year old. Great birthday gift for your little 1 year old monster. 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