I have the jacket and pants in winter camo. The wool is heavier than anything else around. Jacket has a nylon liner. I believe they call it versatech, but it looks like ripstop nylon to me. As such, it blocks the wind nicely, but makes just a tad bit of noise, which can be quieted with a wool shirt underneath. Never spooked a deer because of clothing noise. I save my Autumnwood stuff for the coldest weather I'm likely to face -- about minus 10 to 30 degrees above. It's excellent stuff. Pants are numerically sized. The parkas are letter sized, i.e. small, medium, large, etc. The tops run big. I wear an XL in other high end wool, but a large in Autumnwood, and it's still bigger than the XLs in other brands.