Alexa Chung never ceases to amaze us with her effortless, cool-girl aesthetic, and her latest NYC ensemble is certainly no exception. It's super easy to re-create, and you probably already have the right pieces in your closet. To start, Alexa wore a classic denim dress, then added an olive-green jacket for a utilitarian edge. Other touches included a bright red structured crossbody bag by Delvaux, lace loafers, and these tortoiseshell Karen Walker sunglasses ($250). We love the color combination, and her lace shoes provided the right amount of feminine flair. Mimic Alexa's latest outfit for your next daytime outing, and to transition the look to night, just swap the olive jacket for a blazer and the flats for heels.