I use Filson wool stuff. Its warm and heavy duty.
Ive tried the cabelas windshear wool and sweat my ass off. Zero breathability. Same goes for the Scheels wool jacket and pants/bibs.
I use a 280gr merino top, a 400gr merino crewneck, a 550 obermeyer down snow shirt, and a Filson Double mackinaw. The down snow shirt blocks the wind for me.
I hunted coyotes in 10° with 15mph wind last week, and didnt get cold. My hands did, but my body was warm. I also use a silk neckerchief for my neck.
For pants I like 280gr bottoms, and filson whipcord or mackinaw pants. The whipcords block the wind well, and the mackinaws are stout.
I thought about the ll bean stuff, but some of it has pimaloft, which degrades over time and will be ineffective.
Just my .02