Over the past few weeks, I had the pleasure of expanding my collection and testing a variety of thermal pants and tights while plodding through slush, skating around an outdoor rink, and even cycling ...

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 ...

A quality pair of thermal underwear is one of the best investments you can make. These performance layers maximize warmth, wick away sweat, and disappear under everything from puffer jackets to ...

Thermal underwear is known by many names — long johns, base layers, long underwear, skivvies, or even britches (for my Southern friends). No matter what you call them, they are a staple for anyone ...

The best kept secret about my winter wardrobe — until now, I guess – is that half of it is invisible. Between December and March, I rarely leave the house without a base layer (or thermal underwear, ...

Which thermal underwear is best? Whether you hunt, exercise outdoors, enjoy winter sports or just have to do yard work in the winter, cold weather can make it difficult to stay outside for long ...

Our product picks are editor-tested, expert-approved. We may earn a commission through links on our site. Why Trust Us? LET'S BE FRANK: Thermal underwear is arguably the least sexy type of underwear ...

If you purchase an independently reviewed product or service through a link on our website, Rolling Stone may receive an affiliate commission. Thermal underwear goes by many names, from base layers to ...

Long johns, base layers, skivvies—there are many names for thermal underwear for men. But the main purpose of these cozy tights is the same no matter what you call them: they retain heat and wick ...

Long before the days of electric blankets (or electricity, period), the best thermal underwear was the only thing separating you from frostbite in the dead of winter. These days, the stakes might be a ...

BestReviews is reader-supported and may earn an affiliate commission. Details. This is an archived article and the information in the article may be outdated. Please look at the time stamp on the ...