This is how I've kept warm hunting the entire late season here in SE Pa, where it's beenMUCH colder than normal. I put Under Armour next to my skin, then Cabela's Polartech over that (layers). Top and bottom. Then my insulated camo over that.For my feet, it's Northern Outfitters Expedition boots, thinpolyprope sox (wicking), andwool soxwith one Grabber (24hr)handwarmer (taped with hocky tape) under my toes. Works great. And finally, for my hands I use a hand muff with 3 Grabber (24hr)hand warmers inside. Awesome combo!!