For Maison Margiela, the classics are merely a starting point - the Parisian label is so good at updating traditional designs in modern ways. This double-breasted trench coat has the signature buttoned epaulettes, gun flap and buckled belt, but it's been crafted in Italy from slightly iridescent cotton-poplin in a shade of light-blue. It's left unlined for lightness, so it will layer comfortably over anything.