Personalized Whatif Monster Try Something New Long Sleeve T-Shirt. Give it a try, you just might like it! That's the moral of "Jonathan James and the Whatif Monster" by Michelle Nelson-Schmidt, and that's also the moral of Whatif Monster Try Something New Long Sleeve T-Shirt - White. 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