Isabel Marant is practically synonymous with insouciant, Left-Bank-bohemian chic, and Etoile is the younger and more wearable — but equally cool — sister of the main line. It's full of relaxed tops, romantic dresses, and plenty of Isabel's signature ruffles and lace. The Dalida is an easy, flowing maxi with pintuck details and ruffles at the collar, subtly puffed sleeves, and self-ties at the hips to cinch your waist. It's made up in IM's signature breezy cotton printed with a small-scale floral.