In reply to zarathustra:
My preference is to wear a pair base layer leggings under a medium softshell trouser. So it’s a modular system. I can use for stuff for a much greater part of the year and the leggings come in handy for cold weather camping or when the heating has broken etc.
I have the various weight leggings that I’ve bought over the years, from thin synthetic to heavy merino.
Depending on whether I’ll be wearing crampons or not, I generally choose between the ME G2 or Ibex pants. I have both in a short leg.