I decided I needed a good, solid hat. Something cosy and warm and still a little stylish. After all, I'm sure I could wrap my head in Styrofoam, but even the sheep might take a second glance. The only problem is there are literally thousands of different hats on the market and dozens of different materials. I needed to find one that worked for me. But what is the best hiking hat for winter?

Wool is a well known material, as old as the hills, but there are also lots of things not everyone knows about woolly hats and you have been asking us lots of questions. We thought we would collate some of them and put the answers here.