Base Layer

Performance micro-mesh underwear that dries in under an hour, the cool-wearing Sender Briefs are made from moisture-wicking 89% recycled nylon/11% ...

From trekking across Thailand to traversing the toughest stretches of Baja, we've spent over 20 years perfecting the art of adventure - and underwe...

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

From trekking across Thailand to traversing the toughest stretches of Baja, we've spent over 20 years perfecting the art of adventure-and underwear...

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

A year-round favorite, our Merino 150 Baselayer Bottoms work hard to keep you comfortable everywhere from the ski hill to the campsite. Ultra-smoot...

The Women's Modern Collection Underwear from ExOfficio is sleek, smooth, and comfortable, with dynamic technical performance for all your travel ne...

Our Women's Merino 150 Base Layer Bottoms are the perfect layer to put on for your warm weather adventures. Made of lightweight, breathable Merino,...

An all-season favorite, wear the Merino 150 Long Sleeve as a baselayer in fall or as a single layer when summer backpacking calls. Featuring Core S...

Capilene Air is the most advanced baselayer we've ever made. It has the greatest range of warmth and comfort of any of our baselayers, insulates ev...

Made from our warmest baselayer fabric, these bottoms will keep you warm even on the coldest summits. Features a covered elastic waistband, flatloc...

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...

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

Spring skiing or summer camping? The year-round Merino 150 baselayer long sleeve is game for either thanks to the body temp regulating and no-stink...