Personalized Mad Scientist Toddler Full Zip Hooded Jacket. Mad scientist in edgy broken text is a humorous design for science lovers at birthdays, holidays and graduation. 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.