Stella McCartney reinvents masculine tailoring with the Reine pants by adding contrast black paneling at the back and white piping along the outseam. Crafted from black and white wool pied-de-poule, the design has a high-rise waist and a wide, full-length leg. Wear yours with one of the label's blazers and a tie-neck blouse for a new take on 9-to-5 dressing.