Bored of cardigans? Tired of blazers? Versatility is the name of the game when it comes to a wearable waistcoat and this collection by Givenchy will give you a head start. Its longline gilets and vests add an easy layer over a crisp white shirt and tailored trousers for work. Or dress up an evening look with one of the house's delicate lace and luxe fur designs.