UA is great if your hiking or working out. IM not a fan for sitting still in UA. I used to be then i realized that i would get cold wearing the stuff just hanging up in a tree. Not to mention i felt like i sweated more wearing the cold gear walking to my stand and once i sat down the sweat would turn to ice and because of the nature of UA fitting tight against your body my body would then freeze. I do however love wearing it when im say hunting early season out west and im walking a lot. For stand hunting i like to wear fleece, Berber and Merino Wool. Eddie Baurer First Ascent line of Merino Wool base Layers is awesome (pretty much all the first ascent stuff is awesome,granted not intended for hunting, but it works), not cheap about the same as UA, but i find the stuff to be pretty amazing. Also, the Berber line from Cabelas is second to none, quiet and warm and easy to move in.