Base Layer Clothing

With low-profile seams to minimize bulk and maximize comfort, the fitted Women's Summit Series Pro 120 Tights are an adventure-ready, lightweight b...

With its innovative, seamless, 3-D knit structure, our Capilene Air Crew offers amazing warmth and comfort range. An airy blend of 51% responsibly ...

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

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

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

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

The Thermolator 2.0 Half-Zip Top is the ideal piece for all day warmth and comfort while being out in the elements. This versatile piece features a...

Looking for an "ordinary shirt" that can keep up with all of your adventures? The year-round Merino 150 Base Layer Short Sleeve is up to the challe...

Our Men's Merino Sport 150 Boxer Briefs are designed to perform no matter the trail/road/adventure you're on. They feature a double front panel des...

We've updated the fit of our Men's Merino 250 Base Layer 1/4 Zip to improve functionality while also enhancing aesthetics. As one of our heaviest b...

Meet the better-than-ever Men's Merino 250 Base Layer Crew. We've updated this 100% Merino wool fan-favorite with new colors and a new fit to impro...

We've updated our Men's Merino 250 Base Layer Bottom to bring you a better fitting, more functional tight. The technical benefits of 100% Merino wo...

This mid-weight, duo layer crew, consists of a fully synthetic inside and Merino blend face. Our bi-layer construction, creates an air pocket in-be...

The Thermolator 2.0 Crew Neck Top is the ideal piece for all day warmth and comfort while being out in the elements. This versatile piece features ...

The Cloud Nine Performance Tight is the ideal piece for all day warmth and comfort while being out in the elements. This versatile piece features a...

The Cloud Nine Scoop Neck Top is the ideal piece for all day warmth and comfort while being out in the elements. This versatile piece features an u...

The Thermolator Pant is the ideal piece for all day warmth and comfort while being out in the elements. This versatile piece features an ultra-soft...

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 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...