I'm a recent transplant from the oppressive heat of central Texas to the snowy mountains of SW Colorado. In other words, I get cold easily. I wear this as my base layer when snowshoeing for several hours when it's 20 degrees or colder. I work out hard and sweat a lot, yet these wick well and keep me dry and warm. The anti-microbial treatment really works on blocking the sweat odor too. I ordered the glacier color only because it was the cheapest price for my size. Although it looked whitish to me in the photo, it's actually more of a light powder blue (bonus)! I was also concerned from the photo that the leg length was more of a capri, but they are actually full-length (I'm 5'10"). My only complaint is that the waist line is a little low for my taste. But since my Hot Chillys La Montana top is plenty long in the torso, it's really not a problem. Plus I couldn't believe the price! I have been used to buying performance wear through REI, and am so pleased to have found this great product at at least half the price I would have paid.