Base Layers

Spring skiing or summer camping? The year-round Men's Classic All-Season Merino Base Layer Long Sleeve is game for either. With our Core Spun techn...

Spring skiing or summer camping? The year-round Merino 150 Base Layer Long Sleeve is game for either. With our Core Spun technology, we've wrapped ...

Spring skiing or summer camping? The year-round Men's Classic All-Season Merino Base Layer Long Sleeve is game for either. With our Core Spun techn...

A year-round favorite, our Classic All-Season Merino Base Layer Bottom works hard to keep you comfortable everywhere, from the ski lifts to the cam...

Every adventure starts with a solid foundation, and so does your outfit. Whether you're in Tennessee or Timbuktu, the ultra-comfy and durable Merin...

If your undies aren't comfy, you won't be either. That's why we've designed the Men's Boxer Brief with features like a double front panel for extra...

Whether you're lounging at home or trekking to parts unknown, ultra-comfy, responsibly sourced Merino next to skin helps regulate body temperature,...

We always think your first layer should be Merino. So upgrade your undies to our Women's Intraknit Bikini. Merino wool comes with a lot of natural ...

Our most versatile baselayer: warm, breathable, quick-drying and with HeiQ Fresh durable odor control for daily use. The Capilene Midweight Zip-Nec...

Our most versatile baselayer: warm, breathable, quick-drying and with HeiQ Fresh durable odor control for daily use. The Capilene Midweight Crew hi...

First on, last off'Essential Boxer Briefs are our go-to do-all's. Light on the skin and endlessly breathable, they provide all-day comfort with a f...

Our most versatile baselayer: warm, breathable, quick-drying and with HeiQ Fresh durable odor control for daily use. The Capilene Midweight Bottoms...

From trekking across Thailand to traversing the toughest stretches of Baja, we've spent over 20 years perfecting the art of adventure - and underwe...

From trekking across Thailand to traversing the toughest stretches of Baja, we've spent over 20 years perfecting the art of adventure - and underwe...

From trekking across Thailand to traversing the toughest stretches of Baja, we've spent over 20 years perfecting the art of adventure - and underwe...

From trekking across Thailand to traversing the toughest stretches of Baja, we've spent over 20 years perfecting the art of adventure-and underwear...

From trekking across Thailand to traversing the toughest stretches of Baja, we've spent over 20 years perfecting the art of adventure-and underwear...

From trekking across Thailand to traversing the toughest stretches of Baja, we've spent over 20 years perfecting the art of adventure - and underwe...

From trekking across Thailand to traversing the toughest stretches of Baja, we've spent over 20 years perfecting the art of adventure - and underwe...

From trekking across Thailand to traversing the toughest stretches of Baja, we've spent over 20 years perfecting the art of adventure - and underwe...

From trekking across Thailand to traversing the toughest stretches of Baja, we've spent over 20 years perfecting the art of adventure - and underwe...

From trekking across Thailand to traversing the toughest stretches of Baja, we've spent over 20 years perfecting the art of adventure - and underwe...