The cover is shot by Peter Ash Lee, styled by Kemal Harris. (source)
Click here to view last year cover featuring Karlie Kloss, here to view 2014 cover featuring Chloë Grace Moretz, here to view 2013 cover featuring Amber Heard, here to view 2012 cover featuring Lindsey Wixson, here to view 2011 cover featuring Jessica Stam, here for 2010 cover with Doutzen Kroes and here for 2009 cover with Daria Werbowy.