Personalized Intelligent Trombone Toddler Full Zip Hooded Jacket. Trombone, the instrument for intelligent people is a humorous design for musicians, students and teachers of trombone. Fun gifts for back to school, 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.