Personalized Physics Fanatic Dark Products Toddler Full Zip Hooded Jacket. Physics fanatic in edgy in blue broken text is a unique gift design for scientists, students and teachers. 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.