The Cosette dress from Three Graces London is a Mytheresa exclusive that will prove a style staple this summer, thanks to its effortless fit and breezy cotton fabrication. The square-neck design comes in a "butternut orange" hue with a midi-length skirt that has been pleated to amp up the volume and movement as you stride. Wear yours with flat sandals or wedge espadrilles for enviable weekend style.