Personalized Take a Chance: The Whatif Monster goes swimming Long Sleeve T-Shirt. After learning he might enjoy trying new things, the Whatif Monster takes a leap of faith. Take a Chance: The Whatif Monster goes swimming Long Sleeve T-Shirt - Athletic Heather, from "Jonathan James and the Whatif Monster" by Michelle Nelson-Schmidt. 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