Conquer unpredictable shoulder season weather with these Merino wool base layers.

By trapping heat and wicking away sweat, the best base layers are a cheat code to staying warm when you bundle up, so we tested 15 and found three winners.

A couple of weeks ago, I showed up in dusty pink Kari Traa thermals for a ski date with outdoor writer Stacy Gold and laughed as we tried to explain their appeal to her perplexed 70-year-old neighbor, ...

A great base layer is essential to operating at peak performance in the outdoors. Sure, we all know that wearing cotton is bad: it holds onto moisture like no one’s business and it can’t insulate ...

Women's Health may earn commission from the links on this page, but we only feature products we believe in. Why Trust Us? Earlier this year, I took the trip of a lifetime to Lapland, a winter ...

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Smartwool base layers are a must if you live in a cold climate or vacation in snowy destinations. The brand's apparel and accessories are all made of 100 percent sustainably sourced merino wool, which ...

Let’s take a simple white short sleeve bodysuit and a pair of high waisted baggy jeans with a trendy cuffed bottom. Now, time to layer up to keep you warm and add in some stylish accessories to pull ...

Nuyarn takes Merino wool performance to the next level, and we think it’s the perfect fabric for skiing base layers. Remember a few years ago, when everyone seemed to be switching to merino wool base ...