Sienna Miller took to the streets of NYC sporting cool Paper Denim & Cloth distressed boyfriend jeans ($218) — but she didn't style them in the traditional slouchy fashion we've grown accustomed to. The actress opted to go the opposite direction with feminine pieces from head to toe by choosing a white lace blouse and a pair of blue suede pumps. She then tied a printed scarf around her waist for a unique alternative to a belt and added round retro-style Karen Walker tortoiseshell sunglasses ($280). So the next time you reach for your boyfriend jeans, channel Sienna. In fact, start now by shopping our picks of similar pieces below.