If there’s been one consistent trend on the runways over the past few seasons it’s the presence of denim – be it ripped, distressed, bleached, or frayed. For 2015, designers have taken a more formal approach to the workwear fabric, offering it in dark rinses of indigo and navy. And if you’ve only got jeans in mind, it’s time to include denim jackets, trench coats, jumpsuits, dresses and skirts in the dark hue, too.