Sweet dreams are made of moisture-wicking, fast-drying fabric that sits comfortably from the mountaintops to the track. Make the women's REI Co-op Active Bikini underwear your new essential layer.

briefs

Who needs sleep with a midnight sun? Take the women's Patagonia Active Briefs along on glacier treks, fishing trips and canoeing expeditions past the chiseled shorelines in Norway's Lofoten Islands.

briefs

Made to move, the moisture-wicking, quick-drying and antimicrobial women's REI Co-op Active Briefs underwear is your ticket to comfy on and off the trail. Designed for people who like to move.

briefs

As you move toward adventure, your adventurous underwear should ideally stay put. Good thing the women's Patagonia Active Hipster underwear won't let wedgies get in the way of your goals.

briefs

The women's REI Co-op Active Hipster underwear is soft to the touch and comfy with every stride. These briefs wick moisture, dry quickly and are antimicrobial for an active day out.

briefs

Dawn to dusk outdoors can be fun and comfortable—with the soft, breathable fabric and barely-there trim of the women's REI Co-op Active hipster underwear.

briefs

Stand up to sweat in the buttery soft REI Co-op Active Thong underwear. It wicks away moisture and is antimicrobial for hiking, running and days where the sun is your only guiding light.

briefs

Leave chafing, rolling and binding behind on your next trip with the women's Patagonia Barely Hipster underwear. A blend of soft, featherweight fabric wicks moisture, breathes and dries quickly.

briefs

With soft, stretch cotton, comfort seams and non-friction areas, Kari Traa Dekorativ Hipster underwear feel smooth and breathable during any activity. This package of 2 offers fun colors of a go-to.

briefs

Our outdoor expertise doesn't stop at zip-off pants. The men's REI Co-op Everyday briefs are built to run trails and traverse mountains—or sit super comfortably while you plan those things.

briefs

From trekking in Thailand to traversing tough terrain in Baja, ExOfficio has spent decades perfecting the art of adventure—and underwear. Here are their Give-N-Go 2.0 Full-Cut briefs for women.

briefs

Laser-cut for a clean finish and barely-there feel, the sleek Kari Traa Idunn Hipster underwear fit well under your workout tights. They also give 4-way stretch and dry quickly for functional comfort.

briefs

Stay dry on the trail in the soft, breathable and naturally odor-resistant REI Co-op Merino Merino Bikini Underwear for women. They're made to keep you comfy throughout the day.

briefs

Stay dry on the trail in the soft, breathable and naturally odor-resistant REI Co-op Merino Merino Hipster Underwear for women. They're made to keep you comfy throughout the day.

briefs