We should have an " annual hunting clothes thread" And sticky it

Its a great topic tho

Spoonman the best answer is going to vary so much IMO that it will depend on your specific needs, season, weather, how you hunt etc... .
For starters I guess I will list my personal clothing choices for this seasons Backcountry hunt. I spent 20 days in this gear in weather from from 80 degreees to 28 degrees. Rain, snow and heavy wind at times. Most of the time was in the backcountry but there were a couple basecamp nights during really bad weather. Between 6 and 10,000 feet with high activity level overall. In other words I feel it was a decent test.
Boots: Salomon quest 4D ( Lowa Tibet )
Gaiter: Cabelas Instinct/Sitka stormfront
Socks: Fox river liner with Darn tough Merino hiking sock also used a sock called Built by Altera?
Underwear: Sax or Exofficio
Pants: Sitka Ascent for majority. Changed to Timberline for 3 days of the hunt when temps were down and wind high
Baselayer shirt: Sitka Merino quarter zip
Midlayer: Minus 33 Merino quarter zip.
Insulation: REI down Puffy vest
Shell: Sitka DownPour
Hat: Sitka reversible beainie and crusher ballcap
Gloves: Wool mittens
I also used a Kryptek Koldo rain jacket for a few days, but the downpour performed just as well with less weight.
This system worked well for what I wanted it to do overall. A couple things I would change, The puffy didn't see a ton of use. It was very warm, but when temps were down it seemed to also seemed to be raining or snowing and I was going to second layer merino and my shell and staying comfortable for the most part. It was way warm when active but it did get some play time during extended glassing sessions. I will be getting a Firstlight or kuiu merino hoody to replace the minus 33 quarter zip. I like hoods as they block wind around your neck and help hold heat inside. My legs rarely get cold, and I am not a fan of rainpants unless it goes really,really nasty or lots of thick brush (not my case on this hunt) so I carry gaiters for extra protection for my lower legs and they help hold the heat in while glassing.
Obviously I have listed Sitka as my primary clothing options, but that is mainly because I have had it for several years and don't feel the need to change or budget for a whole new ensemble. Plus I like to match

But any of the companies competing in this game have dialed in their stuff.
The only piece of this gear I absolutely do not recommend are the Cabelas instinct gaiter. I have had more frustration with them.
That covers the technical clothing I use for backcountry hunting and extended outing living in the same clothes for days at at time. Its designed generally to be weather resistant at worst to impervious at best, breathe decently for active hunting and wide range of temps, allow great range of movement, and be relativly lightweight.
But there are some big downsides as well IMO. Cost. This type of gear from ANY of the manufactures will be considerably more than a product that may perform the same task but not in a "technical" fashion. Durability. While its good, these fabrics are not IMO as durable as a microtex or similar product and certainly will not hold up to a cotton BDU type pant.
Noise: Alot of this gear is aimed toward bowhunters, but I have yet to find a technical fabric that compares to fleece or wool from a noise standpoint. Its a tradeoff but understand that going in. Not as big of deal if using a rifle but still something to consider.
Raingear: My

If hunting the eastside where temps drop and brush is not as much of an issue in many areas than any of the quality raingear should work well for ya. If hunting westside where its 45- 50 and pouring get the best wool you can find and plan to be at a heat source every night to dry out.