SLIP dresses, shoulders and slippers made a sibilant trio of trends on the spring/summer 2016 catwalks. Add to that the unlikely return of the anklet (worn with chunky, box-fresh trainers), the proliferation of stiff denim (still wearing stretchy? It's time to stand up straight) and the triumphal progress of the trophy cardigan - are you taking notes? This is Vogue's edit of the 10 key pieces you need for an easy transition to 2016.