I once laughed and said I'd never waste my money on sitka.. lol, I ate my words. I'm going on 3rd year now, and I basically own everything made from the whitetail line and big game line. It's not just the windstopper, the warmth, the functionality, its also the materials. I have several other brands of "cooling" poly materials. I wore one set again this turkey season. I felt like I was wrapped in plastic. I wore my sitka the next day in warmer temps and never felt the same as the day before. Hats off to sitka bc I believe in what you're doing. I truly appreciate your gear. It does make being in the field a better experience. Staying warmer or being dryer. Keep on sitka team!