In Character Costumes - SIlly Shark Infant/Toddler Costume The Silly Shark baby costume includes a zippered jumpsuit, shark hood and slip-on booties. Make family portraits fun & creative with this adorable infant Shark costume. Closures on the inner legs of the baby shark's jumpsuit make diaper changes a snap. No slippery socks here! The booties on this little shark Halloween costume have skid resistant bottoms for safety. This baby shark costume comes in baby sizes Infant Medium, Infant Large, Infant Small.