I live in Northern MN. and when I hunt in cold weather I use one layer of the expedition weight long underwear then another layer that's windproof then I will use a sweatshirt then the my BROWNING hydro fleece camo outfit.For my feet I use a cold weather sock then I put the sealskin socks and the Rockie's snowstalker boots. Then my 1st choice on hunting will be on the ground and if I have to use a stand in a clump of pine trees/for wind blockage.Each person gets colder in different areas of their body,mine is the chest and feet so I cocentrate on those areas.hope this helps out a little