The North Face Blended Merino Crew - Women's - $79.95

A baselayer that's anything but basic, The North Face Women's Blended Merino Crew combines high-tech efficiency with natural-fiber brilliance to keep you warm and sweat- and stink-free. Merino wool is the soft, stretchy, odor-resistant wonderfiber, and many a tech geek labored over the FlashDry that breathes and dries like magic. You could say it's the genius love-child of sheep and scientist. - $79.95