I ordered these for a week-long hiking, backpacking, and hunting trip in the Adirondacks.  It was in the 50's during the day and 30's at night and it rained non-stop.  My pants were soaked through regularly (I had a rain jacket on), and there was so much humidity in the air that, once wet, nothing could be gotten dry.  I wore these as an under-layer and never wanted to take them off.  They were comfortable during the day, even when exerting a lot of energy backpacking uphill, and also great at night.  They kept my temperature so perfectly balanced the whole time that I just ordered another pair.