Edward in the Volturi's Cloak

http://cosplaysky.com/cosplay-costumes/movie-costumes/twilight-new-moon-volturi-red-robe-cape-costume.html

Pants are from Bella's Birthday Party Scene

http://cosplaysky.com/cosplay-costumes/movie-costumes/twilight-new-moon-edward-cullen-birthday-blazer-suit.html