Sienna Miller's latest is right on par with our Saturday brunch dress code: look great without trying too hard. By balancing slouchy boyfriend denim with more pulled-together pieces, she captured the cool-girl balance between laid-back and totally chic. The trick is in juxtaposing tomboy-fit jeans with a more feminine top and statement shades; though, the biggest styling win might just be those classic black pumps. Thanks to her ankle-rolled jeans, her heels become the focus of the look, intimating a kind of Parisian brand of sophistication that's a little more nonchalant and perfect for your off-duty days. We've done the legwork; just shop our editors' picks to channel Sienna's carefree kind of cool.
Shop clockwise from top left: Joie front-pleat cap-sleeved blouse ($188), American Apparel Squire sunglasses ($50), Argento Vivo hammered drop earrings ($88), Lucky Brand floral-embossed belt ($50), Coach Legacy leather duffle bag ($348), J.Crew Everly suede pumps ($245), Zara tomboy-fit jeans ($80)