The fifties are back with a bang! And because fashion has a recycling life cycle, the must-have skirt shape in this trend is the dirndl. But what is it? It falls below the knee, full and flirty with a circular cut. This fun and flirty piece is perfect for every woman because it makes your waist appear smaller than it is. Everyone from Dries Van Noten to Jil Sander sent them down the catwalk. This skirt is grown-up, playful, prim, sexy, retro-modern. . . all in one. It's a great wardrobe builder because you can wear it with flats, smarten it up with a wedge, wear with a formal shirt to work or a simple vest on balmy summer days.