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Underwear
  1. Gear Library
  2. Clothing
  3. Underwear
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    260 Tech Long-Sleeve Crewe Base Layer Top - Women's
    Icebreaker

    During your coldest winter pursuits, layer up with the women's Icebreaker 260 Tech Long-Sleeve Crewe base layer top, which features a soft 100% merino wool jersey fabric.

    Weight: Heavyweight

    Underwear TopsBase Layer Tops

    260 Tech Long-Sleeve Half-Zip Base Layer Top - Women's
    Icebreaker

    A superwarm base layer for the coldest months of the year, this women's Icebreaker 260 Tech long-sleeve half-zip top boasts a cozy merino wool construction that's ready to snowshoe, ski and explore.

    Weight: Heavyweight

    Underwear TopsBase Layer Tops

    260 Zone Half-Zip Base Layer Top - Women's
    Icebreaker

    Ideal for active adventures such as skiing and winter climbing, the women's Icebreaker 260 Zone Half-Zip top is a heavyweight base layer with optimized fabric zones for active performance.

    Weight: Heavyweight

    Underwear TopsBase Layer Tops

    300 Lightweight Alpaca Wool Base Layer Leggings - Men's
    Arms of Andes

    Comfortable across seasons, the men's Arms of the Andes 300 Lightweight Alpaca Wool leggings withstand tough environments and keep you warm in winter and dry in summer.

    Weight: Lightweight

    Underwear BottomsBase Layer Bottoms

    300 Lightweight Alpaca Wool Base Layer Leggings - Women's
    Arms of Andes

    Crafted from the softest Peruvian alpaca wool, the women's Arms of the Andes 300 Lightweight Alpaca Wool leggings withstand tough environments and help keep you comfortable in any climate.

    Weight: Lightweight

    Underwear BottomsBase Layer Bottoms

    300 Lightweight Alpaca Wool Half-Zip Base Layer Top - Men's
    Arms of Andes

    An all-seasons base layer, this men's Arms of Andes 300 Lightweight Alpaca Wool Half-Zip top is breathable for summer hikes and warm from the slopes to apres-ski in winter.

    Weight: Lightweight

    Underwear TopsBase Layer Tops

    300 Lightweight Alpaca Wool Half-Zip Base Layer Top - Women's
    Arms of Andes

    An odor-resistant, all-seasons base layer, this women's Arms of Andes 300 Lightweight Alpaca Wool Half-Zip top is breathable for summer hikes and warm from the slopes to apres-ski in winter.

    Weight: Lightweight

    Underwear TopsBase Layer Tops

    Active Bikini Underwear - Women's
    REI Co-op

    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.

    UnderwearUnderwear Bottoms

    Active Bra
    On

    Say goodbye to the struggle of getting in and out of your sports bra. The easy pull-on, ergonomic design of the On Active bra supports you from yoga to spin class with chafe-free comfort.

    UnderwearSports Bras

    Active Bralette 2.0
    REI Co-op

    Bust into your comfort zone with the REI Co-op Active Bralette 2.0, made from soft mesh that encourages you to get out there, cozy as can be, and wander awhile.

    UnderwearSports Bras

    Active Briefs - Women's
    REI Co-op

    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.

    UnderwearUnderwear Bottoms

    Active Briefs - Women's
    Patagonia

    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.

    UnderwearUnderwear Bottoms

    Active Hipster Underwear - Women's
    REI Co-op

    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.

    UnderwearUnderwear Bottoms

    Active Hipster Underwear - Women's
    Patagonia

    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.

    UnderwearUnderwear Bottoms

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