Reply to Bare Lee: I guess snow isn't much of a concern for most of the UK in the winter, right? Ha ha, never used to be but seems we're now catching up with the rest of the world, brrrr!
I'm up at 5am to deliver newspapers and it gets mighty cold, and frosty at this time, hence wanting something a bit covered. Because I have to sometimes go through grass which is wet and cold, my toes then get wet and cold and I'm a bit of a wimp! Funnily enough, for my actual runs I'm fine with wearing the sandals, it's just the rest of my day! I'll be checking out the shoes mentioned but I'm most interested in the dive boot options as they look most suitable.