Meet Sienna Miller's Perfect Outfit Combination

What does one do when preparing for an international press tour? Find a trademark outfit combination, of course. Just take a cue from Sienna Miller, who caught our eye with her recent go-to ensemble formula. The actress makes a simple slip dress look so good by styling it with chunky heels and a casually messy hairstyle. The trio makes for an insanely cool and effortless look. See the proof below!

Scroll down to see Miller’s amazing style and shop the essentials for re-creating the look.