I want some ankle boots for winter. They need to be totally flat, I have back issues and can't do any sort of heel. They need to be warm - suede or fur lined would be lovely - but also smart enough to be worn with work trousers. Hard wearing is also important. Ideally black, well really ideally a black pair for work and brown or tan for out of work. I usually get lace ups but not a must.
They must exist somewhere? Any advice please.