Personalized UnBAAlievable 3rd Birthday Women's Plus Size T-Shirt. 3rd birthday IT'S UNBAALIEVABLE I'M 3! Women's Plus Size T-Shirt - Vintage Red with funny dancing sheep wearing a polka dotted party hat and colorful balloons. 100% combed ringspun cotton premium jersey (CVC Colors are 60/40 combed ringspun cotton/polyester)