Success at last! I have been looking everywhere for a long cardigan which is cosy but doesn't hang in the manner of a huge duvet.
I am 5'8" and a size 10 (28E,26,38). Have a BIG bottom compared to shoulders and waist. Bought www.monsoon.co.uk/long-cardigans/polly-kimono-cardigan/invt/73204271/# this yesterday (sorry don't know how to do the linky thing).
It is perfect. The detail on the shoulders draws attention away from arse, and the button at the front nips it in just under the bust (the bit that all the waterfall cardigans etc completely hide away). I love it, and am vaguely considering buying another to use when my dh inevitably sticks this one in the washing machine in a fit of trying to be helpful.