cotton feels best next to my skin, and penguins love fashionable wear (I love colors and patterns) so the only thing that's ever worked for me in long pants are the Think Pink. they also wear like iron, unbelievably. knee patches and reinforced everything. just picked up a new pair in Paris! my last pair that I got in Garmisch wore out after 10 years. these are lilac with the requisite checked pattern and patches in solid color. and I got another pair for a friend who was dogsitting for us. pay for the plane fare to go over to Europe to get them, it's worth it. you might even get some climbing in while you're there.