I do 1.5k to 2k real vertical many days at 10-12k ft in elevation. Both in the winter and summer. Takes 2.5 hrs…. No way to stay sweat free no matter what you do. My solution is one many alpinists use to this day.
Cotton T-shirt and a Marino layer. I open the vents on my pants and sweat it out then when I get to where I want to be I zip on my wool bottoms and switch out the cotton layers I have on for 2 in my pack stored in a dry bag. Hang ‘em out to dry when you get the chance. A lot of days I could ring out the sweat from the cotton shirt as it stores that much.
I do the same in the winter for long approaches. If I get cold or sweaty I ditch the cotton and layer up for the day. As on climbs like below a sweat layer is needed..
Cotton for the win!!
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