Subtle details like the pinched sides at the waist of Roland Mouret’s burgundy Risby dress are designed to flatter. It’s crafted in the UK from silk-crepe to a halterneck style that fastens at the nape of the neck, and has a cut-out chest and back panel. Waterfall layers drape delicately over the slim-fitting silhouette to an asymmetric handkerchief hem. Style it with a clutch and stiletto sandals for formal occasions.