Tried Icebreaker and Smartwool and both are itchy for me. I wish I could wear it! But nope stuck with synthetic such as Coolmax or some other type. Found that some synthetics get me way too hot when backpacking, usually nylon or polyester based without that "cooling" factor. Just wish the backpacking, running, and other exercise type shirts had better pockets.

Other thing is I don't stink too bad, not much of a sweathog I guess, so the synthetic smell problems don't "stick" to me too badly. I have been wearing a set of single weight synthetic polypro bottoms for years during cold nights and they are great. Best thing is they wash out and dry so quickly.