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

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

Amazon reviewers can vouch for the toastiness of these long johns and other base layers.

Exercising in winter can feel brutal without the right kit. Here’s how runners, hikers and outdoor swimmers keep cosy when the temperature drops ...

A decent base layer helps by trapping warm air close to your skin and keeping you more comfortable whether you’re shoveling, ...

Add Yahoo as a preferred source to see more of our stories on Google. (Photo/Sean McCoy) The best base layers are unsung heroes of hunting and outdoor adventure. No, they don’t get the headlines as ...

"Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." Building that ski outfit begins, of course, with the base layer. You want the base layer—also called long ...

Powder aims to feature only the best products and services. If you buy something via one of our links, we may earn a commission. Staying cozy on the ski hill is of the utmost priority, no matter the ...

A couple of weeks ago, I showed up in dusty pink Kari Traa thermals for a ski date with outdoor writer Stacy Gold and laughed as we tried to explain their appeal to her perplexed 70-year-old neighbor, ...

I’ve stopped wearing merino base layers. The change wasn’t deliberate, sudden, or driven by a deep concern for the wellbeing of rare sheep. Instead, it happened naturally over time, because the latest ...

Organizing this list was no easy task, as our contributors had to sort through many base layers, armored and not, before making our top picks for 2023. One of the most often neglected things when ...