Calling all superhero / comic book fans! This adorable big sister to be DARK t-shirt features a fun superhero and leading statement.. "every superhero needs a sidekick" announcing a new baby brother or sister's arrival date. The front only design comic book superhero big sister t-shirt is personalized with name and due date. It's also completely customizable: change hair color, change skin color, the wording, add a name, anything you need! Just add your custom requests to the "Special Instructions / Notes" section when ordering. Made with printable vinyl.