From a merino wool base layer to viral HEATTECH fabrics, these thermals provide extra warmth without the added bulk.

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 ...

"I sat in 15-degree temps…stayed warm, comfortable, and dry." ...

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 ...

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

When it comes to base layers, the main choice is whether you want a synthetic (usually polyester) layer, or a natural fiber like Merino. Historically, Merino has been heavier and held moisture longer ...

Smartwool's Merino 150 base layer is designed to help keep you comfortable through all kinds of adventures. Here's our review When you purchase through links on our site, we may earn an affiliate ...

While researching antimicrobial and antibacterial fabrics for a recent project, I quickly realized why merino wool (wool from the merino sheep) is such a popular fabric for outdoors and performance ...