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Underwear
  1. Gear Library
  2. Clothing
  3. Underwear
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    Active Hipster Underwear - Women's Plus Sizes
    REI Co-op

    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.

    UnderwearUnderwear Bottoms

    Active Intensity Base Layer - Women's
    Craft

    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.

    Weight: Unavailable

    Underwear TopsTees

    Active Intensity Base Layer Pants - Men's
    Craft

    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.

    Weight: Lightweight

    Underwear BottomsBase Layer Bottoms

    Active Intensity Base Layer Pants - Women's
    Craft

    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.

    Weight: Lightweight

    Underwear BottomsBase Layer Bottoms

    Active Intensity Base Layer Top - Men's
    Craft

    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.

    Weight: Lightweight

    Underwear TopsBase Layer Tops

    Active Intensity Zip Base Layer Top - Men's
    Craft

    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.

    Weight: Lightweight

    Underwear TopsBase Layer Tops

    Active Intensity Zip Base Layer Top - Women's
    Craft

    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.

    Weight: Lightweight

    Underwear TopsBase Layer Tops

    Active Mesh Bra
    Patagonia

    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.

    UnderwearSports Bras

    Active Pursuits Sports Bra
    REI Co-op

    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.

    UnderwearSports Bras

    Active Thong Underwear - Women's
    REI Co-op

    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.

    UnderwearUnderwear Bottoms

    Active Warm Eco Long-Sleeve Base Layer Top - Toddlers'/Kids'
    Odlo

    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.

    Weight: Midweight

    Underwear TopsBase Layer Tops

    Active X-Warm Long-Sleeve Base Layer Top - Kids'
    Odlo

    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.

    Weight: Heavyweight

    Underwear TopsBase Layer Tops

    All Day Longline Bra - Girls'
    Athleta

    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.

    UnderwearSports Bras

    Anatomica Boxer Briefs with Fly - Men's
    Icebreaker

    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.

    Underwear BottomsBoxers - DEPRECATED

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