Last year clarks did some fab flat sandals which I was going to buy, then didn't, then they became all fashionable and sold out, bah - I was hoping they'd bring them back this year but so far they haven't. They were simple like the Kestrel Soar, but so much funkier.
here
I love them, but I don't think I could carry off the OP's. You would have to be seriously hip with no hint of mumsiness.