Edie is wearing Dolce & Gabbana. (source)
Click here to view last year cover featuring Vanessa Moody, Amanda Murphy, Binx Walton, Lexi Boling and Suvi Koponen, here to view 2014 cover featuring Edie Campbell, here to view 2013 cover featuring Doutzen Kroes, here to view 2012 cover featuring Kate Moss, here for 2011 cover with Fei Fei Sun, Milou Van Groesen, Bambi Northwood-Blyth and Britt Maren, and here for 2010 cover with Daria Werbowy.