use it for everything
this is my 3rd pair of bottoms, the others ones have worn out due to wearing everyday during two winters in Korea. Super soft, great for skiing, hiking. I usually don't over-heat when I am skiing with these in the spring, they do a good job of not getting too hot. A lot of people have switched to Merino which is also good and now call this crap-a-lene. I think that is crazy, Patagonia still makes a good product.