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

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

There’s no doubt that merino wool is an insulating rockstar among outdoorsmen and women. Thanks to its warmth, breathability, moisture-wicking, and odor-repelling performance, it has a massive fan ...

Base layers are damned important. They’re your first line of defense on a cold day, sitting snug against your skin to wick away sweat. But not all base layers are created equal. For the past three ...

When you buy through our links, Business Insider may earn an affiliate commission. Learn more When I moved from the East Coast to the Rocky Mountains years ago, I simply did not understand how to ...

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 ...

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 ...

As winter approaches, outdoor enthusiasts and cold-weather adventurers are turning to Merino wool thermal base layer for its exceptional warmth, comfort, and versatility. Derived from the fine fleece ...

I’d need all my fingers and toes to count the number of times I’ve reminded friends and family visiting Colorado to wear an extra sweatshirt or toss a spare jacket in their pack. Relatives visiting ...