Nothing says well dressed like cashmere but it doesn’t have to cost the earth. Marks & Spencer, Massimo Dutti and Uniqlo are among the high-street heroes offering the best stuff – especially sweaters – at affordable prices. The cashmere jumper is a winter wardrobe staple: easy to wear, it instantly elevates an outfit from casual to put together. With the cold weather set to stay, now is the time to invest. To help you out, SLMan has rounded up the coolest pieces out there – from round necks to roll necks…