When a foot-wide ledge becomes your bed for the night, this women's compressible zip-neck top helps turn up the heat.

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When a foot-wide ledge becomes your bed for the night, this compressible zip-neck helps turn up the heat.

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Lightweight and moisture-wicking, the prAna Chakara bra is the kind of comfortable, easy-to-wear everyday essential that you can use for working out or running errands—or both!

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Pick up your pedaling pace! The women's Fourlaps Circuit sports bra is ready to support you with a wicking, compressive fabric and mesh back for ventilation at the peak of your workout.

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Tackle the cold without sacrificing on-mountain mobility in this Obermeyer Clara quarter-zip base layer top. Soft and stretchy and with flat seams, it's a comfy layer with a dynamic, natural fit.

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Whether you're skiing or heading out on a chilly hike, the men's Smartwool Classic All-Season Merino 3/4-Length base layer bottoms are ideal for year-round layering and comfy enough to wear all day.

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Built for 4 seasons, the men's Smartwool Classic All-Season Merino Base Layer bottoms keep you comfy on snowy days or summer nights under the stars with durable wool-blend fabric and an updated fit.

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When layering for mild-weather adventures, start with the women's Smartwool Classic All-Season Merino base layer bottoms. They're made from lightweight jersey with a supersoft next-to-skin feel.

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A great top for any season, the Smartwool Classic All-Season Merino top wicks moisture and regulates temperature, making it ideal as a fall base layer or a single layer when summer backpacking calls.

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With a form-hugging fit, the Smartwool Classic All-Season Merino Lace long-sleeve tee is a great first layer for high-energy activities—like hiking, jogging or rowing crew—in cool or warm weather.

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With its soft and durable merino wool blend, the men's Smartwool Classic All-Season Merino long-sleeve base layer top is game for any adventure from spring skiing to winter hiking.

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Made from a lightweight jersey, the women's Smartwool Classic All-Season Merino long-sleeve base layer top is just as comfy layered under your ski jacket as it is worn alone for summer backpacking.

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Game for any adventure, any time of year, the men's Smartwool Classic All-Season Merino quarter-zip base layer top is made from a lightweight jersey and built for comfort—even under your pack.

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Made from their lightest-weight jersey and built for comfort, the women's Smartwool Classic All-Season Merino quarter-zip base layer top is game for any adventure, any time of year.

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