Personalized Jonathan James with Whatif Monster Men's Tank Top. Jonathan James with Whatif Monster Men's Tank Top - White features the brave Jonathan James with the overly-anxious yet adorable Whatif Monster from the children's book, "Jonathan James and the Whatif Monster" by Michelle Nelson-Schmidt. Pre-shrunk 100% cotton 6.1 ounce Quarter turned Adult: S, M, L, XL, 2XL