My cheap ankle boots from Payless have given up the ghost, and I need a new comfy pair. Something that's good for walking loads, no heel (I can't manage heels), easy to slip on and off, and warm. I usually wear sneakers (Stan smiths), or ballet flats (Tory Burch) when the weather is nicer. I'm currently wearing custom insoles to help with plantar fascitis, so something that would take the insoles would be great. Budget probably not more than £100. Any ideas?