Personalized Pink Mermaid 2nd Birthday Long Sleeve T-Shirt. A cute mermaid with pink hair and tail celebrates your little two year old's second birthday with her little fish friend. Adorable 2nd birthday gift. Pre-shrunk 100% cotton 6.1 ounce long sleeve t-shirt. Double-needle stitched neckline and sleeves. Quarter turned. Shoulder-to-shoulder taping. Adult: S, M, L, XL, 2XL, 3XL