Personalized Hippopotamus Cute Animal Face Long Sleeve T-Shirt. Hippo Long Sleeve T-Shirt - White has cute hippopotamus head design. Great for the hippo lover. 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