A couple of years ago, I bought a black COS puffer coat, online. It is beautiful, perfect shape, very warm, well-made. The trouble is, it isn't a true black. Black clothes, shoes and bag, look stupid with it. In some lights it looks like a very sad purple, in others a ditchwater blue; but blue and purple look equally bad with it. It doesn't take to grey, either. The result is, I never wear it. Is there anything to be done? Some wash/dye I could put it in the washing machine with? Or should I just take it round to Oxfam? Or find someone who'd like it, for free? I have tried to talk to COS about this, I'm obviously not explaining myself, or it, very well.