I wore wool/Flannel up until fleece was introduced around 2000, killed many deer and elk, and never cared about the color. Fleece is much lighter, with better warmth when wet. I have worn fleece good quality fleece since. Still don’t care about color, and the only “camo” I wear is my Columbia light weight hunting pants I have worn for 10 years. They just won’t die! I bought two pairs and both are still running strong.
Having said that, my grandkids bought me. Old style insolated flannel shirt/coat? I forgot how comfortable they wer, it is now my garage coat.