It's as good as it gets in my opinion. Been a wool guy for many years, and still love it, but nothing has kept me as warm as the Fanatic set in a cold November treestand. Lightweight, form fitting, super warm with perfect pockets...etc, I can't wait for it to get cold this season just so I can wear it again! Here is my advice though. Take your size measurements and buy exactly what size they recommend. If you switch to the layers that Sitka makes, you will need less layers. I bought mine a size bigger than they recommended thinking I would put a bunch of layers underneath it and after hunting through November in it, I realized I should have gone with what they recommended. I sold my large set, and bought a medium set. I also bought the recommended layers to go underneath it, and it all fits me like a glove with minimal bulk, loss of movement etc. It's really good stuff.