Men's Base Layer

Soft, comfortable half-length fleece Ubertube that was designed to do it all You couldn't get enough of the ultra-cozy Trail Mix Fleece, so we turn...

With new patterns, a fresh look, and even more comfort, our Men's Classic Thermal Merino Base Layer Pattern Crew is being its best self. We've upda...

Description Start your layering system with our most innovative foundation to date; our Intraknit collection. Our Men's Intraknit Thermal Merino Ba...

Description We've updated the fit of our Men's Classic Thermal Merino Base Layer 1/4 Zip to improve functionality while also enhancing aesthetics. ...

Description Our 100% Merino wool base layers are a wardrobe essential for every explorer, but this men's top is fashionable enough to wear out on t...

Description One of the very first pieces of clothing you’re likely to put on is also one of the most important because it sets the tone for how com...

Wear it as an insulating layer under your jacket or as an outer layer on high-output activities—either way the Men’s Winter Warm Essential Crew is ...

Description Your base layer sets the tone for how comfortable you’ll be during the day. That’s why you’ll want the one with temperature regulation,...

Everyday boxer briefs made with moisture-wicking, breathable TENCEL™ lyocell/spandex stretch jersey. Fair Trade Certified™ sewn. Features Moist...

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...

Our Men's Intraknit™ Thermal Merino Base Layer 3/4 Bottom is the next garment that's helping us revolutionize the base layer industry. It packs all...

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...

Description Meet the better-than-ever Men's Classic Thermal Merino Base Layer Crew. We've updated this 100% Merino wool fan-favorite with new color...

Description We've updated our Men's Classic Thermal Merino Base Layer Bottom to bring you a better fitting, more functional tight. The technical be...

Description Keep your ski boots, hiking boots, and running shoes free of bulk and friction with our Men's Classic Thermal Merino Base Layer 3/4 Bot...

Description This ultra-lightweight base layer is perfect for year-round layering, whether you're taking on the Nordic trails or heading out for a c...

Description This minimalist-style crew is anything but insignificant. Our Men's Intraknit™ Thermal Merino Base Layer Crew is a lightweight, super-m...

Comfortable boxer briefs made with TENCEL® lyocell/spandex jersey and breathable recycled nylon/spandex stretch micromesh fabric. Fair Trade Certif...

A classic, all-around polyester baselayer made with 50-100% recycled content. The smooth, soft face makes for easy layering. Hollow-core yarns and ...

Everyday boxers made with moisture-wicking, breathable TENCEL™ lyocell/spandex stretch jersey. Fair Trade Certified™ sewn. Features Moisture-Wic...

A classic, all-around polyester baselayer made with 100% recycled content. The smooth, soft face makes for easy layering. Hollow-core yarns and a d...