Thanks everyone - and especially to "Am Fear" for your input on this. I bow hunt and the early part of the season for elk just ended in my state. Weather varies a great deal in the mountains this time of year. I have synthetic hunting pants that are soft and have a fine fleece feel to them, but they can get a little warm climbing up and down the mountains during days which are often sunny & hot. I find my military cotton/poly BDU pants to be much more comfortable. But, with the possibility of a small rain or wind storm blowing in and colder temps at night, I had wondered at the wisdom of my choice. I do carry synthetic long underwear as part of my emergency gear. Think I'll reserve the military BDUs to only the very warmest and earliest part of the season (mid to around the end of Sept). I'll stick to the synthetics & wool after that time of year. Regards, - -