'The Long Thing'
This jacket/coat/scarf thing (which I usually just call the 'long thing') has been in my wardrobe for a few years now since I picked it up in Bangkok. Sadly I don't know the designer as I cut out the annoyingly long label ages ago! Anyway, although I don't know what it is, I do know that it goes with everything and always adds something extra to an outfit, which is just what it has done here.
Jeans: All Saints | Shoes: Givenchy (similar, and a brighter option here) | Jumper: COS | Turtleneck (worn underneath jumper) : Gap (similar)