Personalized Merry Christmas Penguin Long Sleeve T-Shirt. A cute little baby penguin wearing a Santa hat holds two balloons. One with snowflakes, and the other wishes everyone a Merry Christmas! Adorable holiday 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