A black Balmain dress is always worth investing in – part of the 'tBALMAINARMY', Olga Kurylenko and Ophelie Guillermand were both spotted wearing the label's designs at recent events. Knitted from soft merino wool, this style has a streamlining ribbed finish that complements the maxi length. Wear yours with a loose updo to showcase its signature embossed gold buttons.