Base Layer

Heavyweight men's merino wool base layer bottoms for highly aerobic days in cold weather, the 260 Zone Leggings feature zoned ventilation panels fo...

Stretchy and slim-fit merino wool men's boxers made with our corespun fabric, the Anatomica Boxers offer the support and comfort you need.

Our versatile baselayer design in a midweight, zip-neck design, the updated 260 Tech Long Sleeve Half Zip is a go-to foundation for cold-weather la...

A versatile men's merino wool base layer shirt, the 200 Oasis Long Sleeve Crewe combines casual comfort with technical performance.

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...

Our Men's Merino 250 Base Layer Colorblock Crew features 100% responsibly sourced Merino wool made with an interlock knit for enhanced comfort, bre...

The KUHL BOXER BRIEF with ADVENTURE MESH fabric is designed to keep you cool and comfortable. The custom, microfiber waistband eliminates stitching...

Join the thousands of people who have discovered the ExOfficio travel underwear revolution. Just toss your Give-N-Go's in the laundry or wash them ...

Join the thousands of people who have discovered the ExOfficio travel underwear revolution. Just toss your Give-N-Go's in the laundry or wash them ...

The lightweight, breathable, stretch fabric you want with a camo design. Quick-dry and antimicrobial, this boxer brief includes the signature MK in...

Lightweight and breathable meets camo. Quick-dry and antimicrobial, this boxer includes the signature MK inseam action gusset and a brushed elastic...

Join the thousands of people who have discovered the ExOfficio travel underwear revolution. Just toss your Give-N-Go's in the laundry or wash them ...

A versatile, go-anywhere base layer shirt made from breathable 100% merino wool jersey, the 200 Oasis Deluxe Long Sleeve Crewe is the evolution of ...

A lightweight men's base layer top that's perfect for adventure and everyday training, the 150 Zone Long Sleeve Crewe features 150gm corespun merin...

A warmer midweight version of our best-selling Oasis Leggings, perfect for frigid days on the trails or the mountain, the updated 260 Tech Leggings...

Our best-selling active baselayer bottoms made with our ultra-comfortable 100% merino jersey fabric and an updated design for improved comfort, the...

Join the thousands of people who have discovered the ExOfficio travel underwear revolution. Just toss your Give-N-Go's in the laundry or wash them ...