This papercraft is a chibi Captain America, from Marvel Comics' comic book Avengers, the papercraft is created by Teddy Massines. The size of finished model is about 275 (H) x 234 (W) x 234 (D) mm. There is another Chibi Captain America Papercraft on the site.
You can download this papercraft template here: The Avengers - Chibi Captain America Ver.2 Free Papercraft Download