The denim jacket has always proven to be a steadfast wardrobe workhorse. Because of its tried and true loyalty, sometimes we forget how versatile it actually is, especially when our minds are on the trends of the season. Here, the easygoing topper (we chose Acne’s super fresh, black cropped version) adds a touch of nonchalant cool to some of our favorite fall looks, from an accordion-pleat midi to a slinky slip dress. Nothing beats a classic.