Lightweight and supple, the REI Co-op Silk long-sleeve crew shirt provides great warmth for its weight and offers luxurious comfort.

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Some wear it as a light and warm base layer under their gear. Some wear it as a smoothing base for daily wear. Either way, the women's REI Co-op Silk V-neck shirt is a great foundation.

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Soft, cozy and naturally moisture-wicking, the Icebreaker Siren bikini underwear offer itch-free merino wool fabric in a modern, sleek fit.

briefs

Made with a soft, durable merino blend to regulate body temperatures in all weather conditions, the Icebreaker Siren bra is lightly supportive and endlessly comfortable for easy everyday layering.

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Super comfortable and naturally odor-resistant underwear bottoms for everyday wear, the Icebreaker Siren Hipkini briefs rightly deserve a place in your top drawer.

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Cozy, breathable and soft, the Icebreaker Siren thong underwear offer moisture-wicking, itch-free merino wool fabric in a modern fit.

briefs

Providing a solid foundation for your skin-to-environment layering system, Black Diamond Solution 150 Merino 3/4-length tights help keep you dry and comfortable while moving in the mountains.

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A seamless bra crafted in a breathable, organically grown cotton blend? Yep. The prAna Sopra Seamless bra's soft yet supportive fabric frees you from the discomfort of digging seams.

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Breathable, supportive and cool, the Arc'teryx Soria Long Line bra is designed to deliver the all-day, next-to-skin comfort that you want for a long outing on the trails.

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Ideal for both gentle sun salutations or heart-pumping resistance workouts, the Beyond Yoga Spacedye Lift Your Spirits bra provides generous stretch and full recovery wear after wear.

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These lightweight, itch-free merino wool boy shorts are perfect for daily wear or kicking back after a long day outside. The Icebreaker Sprite Hot Pants also have offset seams for all-day comfort.

briefs

Designed for medium-impact workouts like cycling, skiing and hiking, this Sweaty Betty Stamina workout bra provides compressive support for up to C-cup sizes and wicks sweat during the tough stuff.

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For yoga or low-impact action, the Mons Royale Stella X-Back bra offers light support. Elastic x-back straps tuck seamlessly under your racerback tank and the open back gives a great range of motion.

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Elevate your workout routine with the Lole Step Up bra. This sports bra with thick straps, molded cups and an inner mesh lining is ideal for high-intensity interval training (HIIT) and running.

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