Personalized Born to be a Unicorn Long Sleeve T-Shirt. Born to be a Unicorn! You're cute, you love rainbows, you sparkle, and you're magical. You're basically a unicorn. 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