I've been dressing in layers for several yrs now, to be more precise, a few decades!
As hunter's, as Humans were all different, and we change as we get older, and
What works for me might not work for the next guy!
Personally, I sweat a lot, like a number of others, especially walking in, that could be detrimental to the Hunt, and more,
Importantly to my Health!
I think it also Depends on where your at, meaning what kind of Hunt!
At our Camp in PA, we typically walk out of Camp an hour before first light, and legal shooting time,
So I like to move slow and easy trying not to Heat up!
I've been on Western Guided hunts, where the Guide is raring to go get after it, and working hard to give you your Money's worth,
Albeit very good, all fine and dandy, but I've learned to dress down at the start, and when we get to where were going,
Remove the additional layers from my pack, and stay Warm!
We used to do a lot of wool back in the day, which is still preferred by many, including us, but with Today's light weight,
Warm gear, Gore Tex, and Th-insulate, it Varies on the hunt, and what were doing!