As I say, I haven't yet worn my Rab Powerstretch pants/tights, but I expect them to be too warm for hard work hiking. Especially with any other pants over them. I chose them for walking/touring in cooler weather and for at rest times. Being a local manuf., perhaps you could see them in a store.. The new model does not have RAB embroidered all around the waist and that is a relief.
I don't understand the differences between PowerStretch and PowerDry.. PowerDry seems to be the replacement? At least, I found more garments made of PowerDry and it seems to be the topic of more recent threads here.
In cool weather, I am usually happy with poly/cotton blend pants (yeah, cotton blend.. I just like them and they dry okay) with gaiters. Warm enough for me while moving when doing things in winter. I do wish to have more on when I stop for long, though. Most of my winter experience has been dry cold of American west. Less experience in damp cold. However, enough to know I prefer dry cold..
I can snowshoe.
I can't ski or snowboard.
I like learning differences between here, America, and any other place. I just received a Rab jacket and the zipper pull is on the opposite side from our men's jacket. Here, ladies jackets typically have the zipper pull on the left and men's on the right. In your world, are zipper pulls on the same side regardless of sex?