Personalized 5th Birthday Cute Panda Bear Long Sleeve T-Shirt. Panda 5th Birthday Long Sleeve T-Shirt - Pink has funny fat panda bear with number five on its tummy. 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