Preen by Thornton Bregazzi serves up fuss-free florals with the Cosmia skirt, which sees vibrant blooms juxtaposed against a black crêpe backdrop. This stretch design is enriched by figure-defining ruched panels, which make for a subversive silhouette, and it comes complete with an elegant slit at the back. Coordinate yours with the brand's matching top, created with the same whimsical posy print.