Make sure your feet and head are well protected.
Years ago I kept piling on thicker and thicker socks...only to realize i had too much on...and my feet were sweating on the walk in. Same with head gear. Don't get too much on when walking in.
Another key: keeping the wind off you. I'm a huge fan of Gore-Tex or the like. Sat on an exposed hill during rifle season in NE, 22 degrees with 15MPH winds at my back. Merino wool, poly shirt, Kuiu Guide Jacket, Cabela's Mto50 Gore-Tex shell on top. Kuiu Attack pants and Cabela's Gore tex bibs laying over my lap on the bottom (not even wearing them). And stayed plenty warm.
Another key...get those chemical hand warmers and keep them in your gloves. If my hands / feet / head are warm, I can get away with less on my body.
Years ago I kept piling on thicker and thicker socks...only to realize i had too much on...and my feet were sweating on the walk in. Same with head gear. Don't get too much on when walking in.
Another key: keeping the wind off you. I'm a huge fan of Gore-Tex or the like. Sat on an exposed hill during rifle season in NE, 22 degrees with 15MPH winds at my back. Merino wool, poly shirt, Kuiu Guide Jacket, Cabela's Mto50 Gore-Tex shell on top. Kuiu Attack pants and Cabela's Gore tex bibs laying over my lap on the bottom (not even wearing them). And stayed plenty warm.
Another key...get those chemical hand warmers and keep them in your gloves. If my hands / feet / head are warm, I can get away with less on my body.