Not for walkers, but for those who really want to Move It With Vigor over hill and dale and and clamber over steep rocks: The Best Five Hiking Pants
I have the Pranas and the Montanes. The thing is that, for cold weather, they are easy to layer underneath. Re the Montanes, Amazon doesn't have them but Montane USA does. Their sizing is not US sizing, so check the sizing for those great water-resistant hiking/climbing pants.