Here's what other sites are saying:
No pant hollers versatility like the Norrona Men's Trollveggen Warm2 Stretch Tight. It's outerwear in cool temperatures and a base layer when the temperature really dives. the stretch fabric won't limit your range of motion. And comfort' Forget about it.
It's best if your legs stay warm on alpine climbs, and it's also best if you wear a base layer that won't hold you back on high footholds. Slip into the Norr na Trollveggen Warm1 Stretch Tight. Norr na made this base layer with stretch panels behind the knees for maneuverability and a comfortable waistband for no-bulk layering. The wicking fleece feels warm pitch after pitch.
- Backcountry Outlet