Personalized Whatif Monster Birthday Girl Toddler Full Zip Hooded Jacket. There's no day like your birthday, so why not try something new? Whatif Monster Birthday Girl Toddler Full Zip Hooded Jacket - Black, perfect for little fans of "Jonathan James and the Whatif Monster" by Michelle Nelson-Schmidt. 7.5 oz., 60/40 cotton/polyester. Jersey-lined double-needle hemmed hood. Pouch pockets for all their treasures. Coverstitched shoulders and armholes. Coverstitched rib waistband and cuffs.