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. This easy-fitting blouse is one of their quintessential shapes, with a half-button placket and a hip-length hem perfect for tucking into wide-leg jeans.