I've been on quite a few sight seeing holidays in Italy and Spain, and have always worn Fitflops. I've worn them all day, every day, and have never had aching feet, and they are ideal for walking on cobbled areas which is quite often the case in those countries. Although they are not quite what you asked for, I can highly recommend them.
Has anyone else done anything as daft as this?
Virtual patient in Virtual ward ??
