Face
#1 1st layer : Polyester thin face mask ( you can pull it over your nose when it gets real cold.
#2 2ND Layer: Windproof Waterproof hat that has flap that can cover the front of your face or you can fold it over the top of your head if it is getting to hot, make sure there is a nose slot so your air from your nose can go down so it does not fog up your goggles.
#3 Clear snow goggles, They are hard to find in clear but on dark overcast days they are great.

Boots
#1 Sorrells or any pack boot is the best,, your feet do not move much so if you wear leather you will get cold feet.

Top clothing
#1 Polypropylene t-shirt with a zipper,, There are 2 styles,, light duty and heavy duty.If you are hunting and going to walk a lot use the light duty. If you are riding a lot use the heavy duty.
#2 Good heavy wool shirt or jacket or even fleace with lots of pocket's to carry extra supply.
#3 Water proof and windproof coat, even at 40 degrees traveling at 30 mph the wind will get to you.