Sienna's Dog Walking StyleWhile not performing on Broadway in "After Miss Julie," the boho chic queen takes her style to the streets of N.Y.C. with pooch Bess

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DOWNTOWN COOL

Bopping around the SoHo neighborhood on Oct. 19 with her canine friend in tow, Miller sports a swingy herringbone coat, light-wash slim jeans, suede and leather buckle boots and, of course, her red Prada tote.