I wear a pair of fjallraven G-1000 trousers ( forget what type) generally for hill/mountain work and a pair of fjallraven Barents pro winter when the snow and ice arrives. Admittedly not the cheapest option ( I generally buy gear like this out of season or end of line to save a few bucks) but they've never let me down and despite both being over 4-5 years old, still look as near new as could be.