wool whipcord pants when it’s cold (I adjust my lower base layer based on how cold)- the extreme tight weave does a good job with wind and lighter precip
cool weather I like the new military softshell pants made by Patagonia- built in suspenders, nice cargo pockets, fabric breathes well but still blocks wind and light precip effectively
These?
https://store.glennsarmysurplus.com/pcu-gen-ii-level-5-soft-shell-patagonia-p992.aspx