Hi everyone - - Most of us have probably heard the advice that 'cotton kills'. That is, - except for hot summer weather,- cotton is not a good choice in outdoor clothing. It will retain moisture close to the skin helping to chill the body. - Because of this, once there is the possibility of colder and/or wet weather I stick to synthetic inner and outer layers. (I also plan to purchase some quality wool this year when weight/bulk isn't a factor.) - - My question is this - has anyone found studies related to the effectiveness of cotton/poly blend fabrics for outdoor use ? I have quite a few military type cotton/poly BDU pants. They are fairly tough, easy to find, reasonably priced (and can be dirt cheap if bought used in a surplus store), and I find all the pockets to be handy when outdoors. Since used by the military, I wouldn't imagine this cloth material to be absolutely horrible - - but who knows. I haven't had any luck finding studies on its performance and would appreciate any input you could provide. Regards, - -