I have nothing made of cotton in my bag. Gets wet and you freeze to death. I carry 2 spare sets of socks with liners, Buy oversize boots for wearing socks and liner at the same time. Keeps blisters at bay.I use the new military fleece and wool for my socks, long johns, pants and shirts. Outer wear is military also, light weight, durable and water proof.
Depends on season what I carry and how heavy the clothing will be. In our SAR unit up here in North Idaho, I carry a new complete Antarctic winter suit with boots I scored at the local Veteran Standown.
If you are a veteran goggle Stand Down and go score free gear.