Miu Miu has been at the fore-front of the trend for detachable collars since those cute cat-print ones from spring/summer 2010 took off amongst the street-style crowd. There's a certain knack to getting the look right; whatever you choose to wear on your top half needs to be relatively unfussy, unless you're going for a piled-on over-the-top vibe. Consuelo Castiglioni at Marni - has slowly been building the collar into the essence of the Marni look and a focus for the Marni Winter Edition 2012 collection. Having previously offered the style in fur (autumn/winter 2011), one year later the collars come in black, white and red neoprene, adorned with geometrical stones and embellishments or with girly bows. They are a great way to instantly and easily add some interest and detail to an outfit - not to mention an accessible way of buying into Marni's sweet, quirky, clashing aesthetic.