This papercraft is a life size Luigi's Cap for Cosplay, created by Luisifer Chavez-Calderon. The size of finished model is about 174 (H) x 285 (W) x 218 (D) mm. There is also a Mario's Cap Papercraft on the site.
Luigi's Cap is one of Luigi's important pieces of clothing. Like his brother, Luigi has worn the hat since he was a baby.
You may get this papercraft template here: Life Size Luigi's Cap Papercraft for Cosplay Free Template Download