Last year at the sports show in Harrisburg i came across Gator Skins. its a thin material that completely blocks wind, wicks moisture, etc. they claim its 3 times warmer than wool. originally designed for motorcyclists but are becoming popular with hunters. I got a shirt and used it this archery season. so far so good but i havent used it in really windy or cold conditions yet. anyone else try it? like it?