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. Like the Neslya: an easy, floaty blouse finished with flutter sleeves and a tie-closure at the neck to tie in a bow or leave undone. A perfect companion to your favorite pair of white denim.