I live in NE Scotland so they need to be warm and waterproof...
1
2
3
4
In particular, I need them to wear for work on days when there's snow. My Uni has got me teaching all over campus from January so I need them to trek back and forth when the weather's bad. Fortuntately, I can get away with wearing jeans on such days, so they don't need to be super-smart. I'm erring towards no. 2 or 3.