Personalized Watermelon Kawaii Long Sleeve T-Shirt. Baby and kids will love this funny Watermelon slice has smiling kawaii style face on Long Sleeve T-Shirt - Red. 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