Men's Base Layer

Performance base layer for lower output activities in cool to cold temperatures. | LT: Lightweight. RHO Thermally efficient base layer with e...

Performance boxer briefs made with moisture-wicking recycled nylon/spandex stretch micromesh fabric for high-output activities and travel. Fair Tra...

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

*Sale items are final sale and are not eligible for return. Please reference the  Size Guide to ensure the best fit before purchasing. Wear it as a...

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...

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...

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-Wi...

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...