desirable styles this autumn are the kind seen at Prada, with chunky track soles and various degrees of platform height - they should be stompy like a boot on the bottom, but elegant up top. They have now proliferated across the high street, with colours, style and a price point for everyone.In the other corner, there’s the ballerina flat, which, thanks to Miu Miu (Prada’s sister brand) hasn’t had a fashion moment like this since Princess Diana wore them in the Nineties. Back then I had a Saturday job at French Sole, the London-based label behind the late Princess’s shoes, and the tiny store was always packed with women eager to emulate her style.