Personalized 1st Birthday Kitten Blue Women's V-Neck T-Shirt. I'm one! A cute blue kitty cat has a birthday hat and a cupcake with a 1 shaped candle. Happy 1st birthday to the one-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