If you have to buy very high-end clothing, you'll often need an excuse. And what excuse is better than the 'it was a 2 for 1 offer'? Now this isn't exactly true here but almost. It can be worn at work or on the weekend, which is less than can be said for a Charvet dress shirt.
Because this Missoni cardigan (Browns, £805) can be worn at the office with minimal fuss (read: coworkers making sly jokes). The only issue would be that it is a little like looking into a kaleidoscope, which might confuse people if you're doing a presentation. Although that might be a good thing if the presentation isn't going well.