The classic sheath dress first appeared in the fifties, countering the full-skirted Dior New Look silhouette that rose to popularity a decade earlier. With its nipped-in waist and figure-hugging shape, Jackie Onassis quickly adopted the style, cementing its status as a wardrobe staple. Today, the piece remains a favorite for the likes of Kate Middleton, Michelle Obama, and Anna Wintour. And rendered in vibrant florals or embellished tweeds, it's an effortless way to get dressed in the morning, especially as the summer days wear on. But if those options skew a bit too ladylike for you, Cédric Charlier toyed with digital prints and Stella McCartney used trompe l'oeil lace to add unexpected twists to the traditional silhouette. Click ahead to see all of these choices and more in our slideshow.