The best stuff we got in the infantry was when they issued us the under armor style cold weather under garments. Honestly the thing that makes you cold is your own sweat. That is why after walking to a set with heavy winds you feel colder. The best stuff wicks the sweat from your skin. Its a pain, but when driving between sets, I always take off my heavy coat,gloves, and hat. A few minutes before reaching a set I turn my heat off in the truck and I only run it high enough to keep my windows clear. I might not be a good predator hunter, but I had plenty of practice surviving different elements. You would be surprised at how little I wear even on a negative night. Condition your body and mind and you won't feel as cold, until you crawl in bed with your lady and feel how warm she is.