The 8 Best Baselayers of 2018

Its what's inside that counts.
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Your next-to-skin layer keeps you warm, wicks away sweat, and provides your first line of defense against the cold—so it pays to pick a good one. We tested wool and synthetic baselayers in bitter temperatures, brutal storms, and long trail days. These were the ones that ended up on top.

Check out the rest of the 2018 Winter Gear Guide