EDIT: I wrote my initial response hastly on a coffee break at work. Edited below.
If your talking base layers, (merino) wool continues to be very popular with lots of options out there.
In outer layers however, wool seems to have taken a back seat in popularity to synthetics. Gore with lightweight Nylon/poly blends and laminates are the bees knees sometimes. EDIT:. Sitka Timberline pants are awesome and plenty quiet. All synthetic but the Gore Tex knee pads and seat are a real plus.
King of the Mountain wool is pretty expensive but I always hear good things about them. Would like to try a pair. EDIT: probably too heavy unless it's Sub-Zero.
I have a couple Fred Asdell wool pullovers that I really like in mild weather or as a mid-layer. EDIT: Highly reccomended.
Cabela's wool Windshear is a favorite of mine, I don't know if the newer Bass Pro owned stuff is as good. I think the wool content is lower now. EDIT: This stuff is too heavy to wear tracking!
Military surplus wool pants and hand-me-down wool sweaters and flannels are still a good choice. You can find some good deals on eBay.
Grey Wolf Woolens makes custom stuff. I've tried some on at a show last year and really liked them.
Sent from my Pixel 3 using Tapatalk