A coveted style since it appeared on the runway at Paris Fashion Week, the Lafsten over-the-knee boots from Isabel Marant are a must-have for the well-curated cool-girl wardrobe. Crafted in Italy from black calf leather, the design borrows a cowboy silhouette: it starts with a notched collar and ends at a pointed metal cap-toe. Wear yours with minidresses and over tailored trousers to emulate the styling from the Fall/Winter 2018 collection.