>>1405505I should expand. When you're active in the winter snowshoeing/boarding/skiing/etc., you produce A LOT of heat. Much more than normal hiking activities. Instead of constantly shuffling clothes, I just try to keep moving and not sweat. Sweating WILL fucking kill you. I've had hypothermia several times in the past few years and it's extremely dangerous. You basically want to lay down and do nothing and then you die. So don't sweat and try not to get wet. When you do come to a stop, add insulating layers so that you don't lose body heat. This is where your down jacket comes in handy. For lunch I'll add that and then drape my down quilt over my legs while I cook and eat