We found the best base layers and thermal underwear for women. Including top picks from Patagonia, Icebreaker, Kari Traa, Stio, and more.
Written by Morgan Tilton, Nicole Qualtieri and Kylie Mohr
Athletes and outdoorspeople know that base layers are essential for comfort and safety in the wild. Find the latest underwear, socks, long johns, and more.
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