The dark-horse skivvies specialist hawks boxer briefs that are soft, supportive, and, perhaps most crucially, sexy.

These base layers prevent sweat buildup and protect against the cold, whether you’re working outside or hitting the slopes.

Why Trust Us? LET'S BE FRANK: Thermal underwear is arguably the least sexy type of underwear for men on the market. On the flip side, they are some of the most functional bottoms since they ...

But maybe something as simple as changing the kind of underwear a man wears can make a difference. The temperature of the testes is at issue: In order for testes to produce sufficient quality and ...

Those base layers can include thermal underwear, also known as long johns ... These bottoms are available in both men and women’s versions along with plus-size options up to 4X.

When you buy through our links, Business Insider may earn an affiliate commission. Learn more Your underwear collection doesn't have to be basic. Sure, we all need a basic black or white pair, but ...