Thank you one and all for your post so far. So far all I need is someone to post who has worn this for several days without washing to know if it stinks, I will be in close proximity to other people so I don't want to be too offensive.
I agree on the wool for certain, outside the summer season, and off the trail that is almost all I wear. I am bushwacking a lot doing search and rescue training so ANYTHING thin and expensive will be ripped to shreds, I wear the thickest clothes so I always get sent to search the thorn patches. I have been hunting the thrift stores, very successfully :D, around here for old wool shirts and thick milsurp wool cargo pants from European countrys, those Europeans know what they're doing. People toss them because they wear them without a baselayer which is not what they were intended for. My layers right now are wool socks, Wool cargo pants, a wool button up shirt over a smartwool sweater and a wool baclava, leather boots and leather gloves over wool liner. Lot of wool but there is also a lot of rain here, if the rain gets to bad I'll throw on my milsurp poncho over this.
The US poly/nylon/cotton BDU/ACU's I just don't trust.