Polish model Jac Jagaciak, after Elie Saab Couture, Paris, July 2013.
A simple black maxi dress with a moto jacket over the top = perfect for a summer weekend. 
Recreate Jac's look (kind of):
Black maxi dress: Oak side-split maxi dress, Rachel Pally Anya Maxi dress, DKNY layered jersey maxi dress, ASOS maxi dress with tiers (in black), PJK Patterson J.Kincaid Manning maxi dress, Splendid maxi tank dress (in black) or ASOS a-line maxi dress
Alice + Olivia Kellen quilted moto jacket, Just Cavalli Tweed moto jacket, Junya Watanabe Herringbone moto jacket, Topshop mini quilt crop biker jacket, Helmut Lang Peak cropped biker jacket or MSGM Patch biker jacket
Balenciaga Arena Giant 12 gold day bag