Roland Mouret - Roland Mouret's eveningwear is always elegant and modern in equal measure, as this black silk crepe de Chine Hatfield top shows. It's tailored in the UK with an asymmetric neckline that's framed with a white self-fastening tie – note how it pulls the single exposed shoulder into focus – and shaped with a draped side seam to ensure a relaxed fit across the body. Style it with white trousers and stiletto heels for a candle-lit dinner party.