Burberry, London

Flawlessly crafted from emerald-green cashmere this long Sandringham trench coat is a statement addition to Burberry's outerwear edit. It's tailored to a double-breasted silhouette and features all the time-honoured details: shoulder epaulettes storm flaps and buckled waist and cuff straps. The deep jewel tone will work equally well with monochrome tailoring as it will deep-blue jeans.