This shirt was excellent for my cold weather hike in the Southern Nantahala Wilderness. It was not freezing by any means, (maybe late 30's), but I wore only this shirt and my Khul pants and I was great. The weather got worse and started raining but as long as the rain stayed at a minimum, this shirt with it's thermal lining kept me warm. Of course, when it started pouring, everything was soaked and miserable but that's the breaks.Great shirt for everyday use, or if you are adventurous, it will meet your expectations there as well.
My wife got me this in the orange color and it is awesome! It is very comfortable, and warm enough for most situations, as in, lounging inside its nice, or add a layer and its great outside in 20 degree weather. The snaps stay fastened, and are kinda nice, its is simular in some ways to the Gomez shirt which is also a favorite(but warmer.)