I have some Sitka pants that I really like with reenforced cuffs, knees, suspenders.
Maybe they were called Mountain pants or something like that. Best hunting pants ever in my opinion. I have worn them deer, bear, and elk hunting. Worn them in MN, ND, CO, Ontario, and Manitoba. Expensive but worth every penny.
I have one Asbell wool pullover that gets a lot of use, in conjunction with various vests. Usually either a short brimmed cap or a wool stocking cap. Then merino wool long Johnson.
For really cold weather, (posting on a stand) a Heater Body Suit is tough to beat.
For ninety percent of my hunting, I wear Muck boots. In the mountains, Meindl Perfekt boots have served me well on four elk hunting trips.