since before they started wearing the "layered" look. Survived dragging out a deer in minus 10 degree weather, forty years ago.
Got to count for something.

I avoid the inventions of the new companies and avoid "hot named wool." Use no name wool; its cheaper.
In recent hikes this winter, experimented with the old and the new.
For the lower legs and ankles,. used some winter, old fashioned wool felt gaiters. For the hands, wore some 20 plus old military mittens. Mittens have worked for years for me on cold winter days.
Wore a new neck gaiter for the neck, the ears, and the back of the head.
I was so warm under my old parka, never did get around to wearing my thick wool sweater, as an under layer. Did wear, one day, an old polypropylene insulating shirt. Found it still works in 7 degree weather.
It seems you can only wear this stuff, if you remember it. For me its staying warm and saving money.