"When you're stuck between seasons with unpredictable temperatures to navigate, a lightweight khaki trench will be your savior," says The EDIT. Available to shop immediately after its London Fashion Week show, Topshop Unique's windproof 'Redford' coat is made from army-green twill with cotton-canvas panels at the front. It has internal drawstrings to temper its oversized fit and thigh-skimming side splits.