Personalized Jonathan Toddler Sweatshirt. Jonathan Toddler Sweatshirt - Heather, from "Jonathan James and the Whatif Monster" by Michelle Nelson-Schmidt, is the brave and courageous boy who decides to try new things. Keep your little one cozy and stylish with this soft and durable toddler sweatshirt. Designed for comfort and ease of movement, it features a classic fit with ribbed cuffs and hem for added warmth. Perfect for everyday wear, playtime, or chilly outings, this sweatshirt is made to withstand the adventures of an active toddler