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...

Classic boxer briefs made with a stretchy slim fit and our corespun fabric, the Anatomica Boxers are supportive and comfortable for daily life and ...

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...

Our versatile, go-anywhere shirt made from breathable 100% merino wool jersey, the 200 Oasis Long Sleeve Crewe is our best-selling base layer top.

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 ...

Our lightest base layer top that's perfect for active adventure and everyday training, the 150 Zone Long Sleeve Crewe features 150gm jersey corespu...

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 base layer bottoms made from soft and breathable 100% merino wool jersey, the 200 Oasis Leggings are the perfect foundation for yo...

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 ...