There’s no excuse not to go outside with these warming, sweat-wicking base layers from Carhartt, Eddie Bauer and more.

Smartwool’s Merino 150 Base Layer Bottoms offer impressive warmth because they’re high-quality 100% merino wool construction. 32 Degrees Women’s Cozy Heat Base Layer is stretchy, comfy, and fits well ...

Base layers are truly the unsung heroes of outdoor apparel. Although tucked away under layers of fancy Gore-Tex and Primaloft, these hidden soldiers play a critical role in trapping and regulating ...

It’s officially cozy season, so it’s the perfect time to shop for a new set of the best base layers to wear under your ski clothes or winter hiking outfits. However, with so many options and a wide ...

“I use it as a base layer when hiking, camping, or playing hockey and it works well.” ...

The right base layers can help keep you warm and comfortable on blustery, cold days or when you’ll be outdoors for hours. Designed to be worn next to your skin, and under mid and outer layers, base ...

A good merino base layer might be an investment, but it's certainly worth it for its temperature-regulating, moisture-wicking properties that keep you comfortably warm and dry. Whether you're an ...

This article contains affiliate links. We may earn a small commission on items purchased through this article, but that does not affect our editorial judgement. A thermal base layer is brilliant for ...