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.

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The right base layer for intense workouts and active lifestyles, the Craft Active Intensity base layer has soft, quick-drying polyester that provides moisture management in cool to cold conditions.

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For hard training sessions and active lifestyles, these Craft Active Intensity base layer pants help you regulate your body temperature for extended comfort no matter what you're planning to conquer.

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For hard training workouts and active lifestyles, Craft Active Intensity women's base layer pants help you regulate your body temperature for extended comfort no matter what you plan to conquer.

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Your active, high-intensity lifestyle calls for the Craft Active Intensity base layer top. Wear this bestseller for training, running and skiing, whether it's cross-country or backcountry.

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Your active, high-intensity lifestyle calls for the Craft Active Intensity zip base layer top. Wear this bestseller for training, running and skiing, whether it be cross-country or backcountry.

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Your active, high-intensity lifestyle calls for the women's Craft Active Intensity zip base layer top. Wear this bestseller for training, running and skiing, whether it's cross-country or backcountry.

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Perfect for paddling, pedaling, running and climbing, the women's Patagonia Active mesh bra offers medium support with a seamless construction that minimizes chafing when you're working up a sweat.

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Is it time for that afternoon escape outside? Get moving in the breathable and wicking REI Co-op Active Pursuits sports bra, built with an unrestrictive racerback design for medium-impact activities.

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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.

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Keeping kids warm and comfortable on action-packed winter adventures, the Odlo Active Warm Eco base layer top offers advanced thermoregulation and warmth while allowing a full range of movement.

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Show your young ones that snow and ice are fun with the right gear. The kids' Odlo Active X-Warm long-sleeve base layer top wicks moisture and has cozy fleece inserts to keep them warm and dry.

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From dance class to capture the flag and beyond, this girls' Athleta All Day Longline bra provides soft, supportive comfort and moisture management to keep her moving with ease.

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Ideal for everyday wear and active pursuits alike, the Icebreaker Anatomica boxer briefs are made with ultralight merino wool for warmth and all-day comfort.

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