Personalized Whatif I Love to Swim with Whatif Monster Toddler Hoodie. Take a dip with the Whatif Monster! Whatif I Love to Swim with Whatif Monster Toddler Hoodie - Heather, from the hit children's book, "Jonathan James and the Whatif Monster" by Michelle Nelson-Schmidt. The Toddler Pullover Fleece Hoodie keeps little ones cozy and comfortable through all their adventures. Made with soft fleece and a smooth jersey-lined hood, it’s perfect for layering on chilly days. Ribbed cuffs and waistband help hold in warmth while side seam pockets add a touch of practicality for busy toddlers on the go.