Sarah Burton's world of Alexander McQueen is a force to be reckoned with, and this delicate ruffled minidress from the British brand's new-season collection is an exceptional reminder of her elevated taste. Crafted in Italy from fluid crêpe, the cold-shoulder silhouette is rendered in a punchy purple colorway. We think the blouson sleeves and tiered hem look best when partnered with barely-there stilettos and shimmering statement earrings.