When vacationing in France and enjoying a day of sunbathing with your best friend, the key is to dress effortlessly. Karlie Kloss knows best — just look at the striped halter one-piece she wore poolside. Derek Blasberg snapped a photo, and of course Karlie struck the perfect supermodel pose, allowing us full view of her flattering suit. From its alluring cut to its sophisticated pattern, which conjures images of the iconic striped bateau top, it’s safe to say Karlie’s design belongs in France — and our own swim drawer too. Read on to get inspired by Karlie’s Parisian style, then shop similar pieces.