Living in the Nevada desert for many years I have to say wear 50/50 shirts and socks. That all cotton stuff doesnt wick, will stick to you and make you wet and hot. As far as shorts I only wear BDU's from a military surplus that I cut off. I might still be hot but not soaked, especially during monsoon season when its 110 and 60-70 % humidity. Just my two cents worth. Hope this helps out.