I would wear my thermal long johns, cotton t shirt, and heavy sweatshirt. I would double up on wool socks. Outer layer would be my showers pass rain pants, and showers pass jacket. Hi Tec waterproof ulitmate hikers for footwear, and Outdoor Research meteor mitts for my hands. Outdoor Research face mask for my head and helmet, obviously. This combination has worked very well for 2 winters now. If its snowing or really bad wind I might throw on my Smith goggles.