Cosbbit was inspired by a Japanese popular culture "Cosplay" by wearing the costume and acting like a character. By waring Cosbbit, children can transform into a superhero at any time, anywhere. Cosbbit has divided into 3 parts. They are rabbit ears, a cape, and a bag. Children can put their belonging in the bag part, which is made with soft material (EVA). Moreover, the cape and rabbit ears are detachable that have different combinations for children.