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Underwear
  1. Gear Library
  2. Clothing
  3. Underwear
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    Merino 150 Lace Base Layer Bottoms - Women's
    Smartwool

    Layered under a pair of pants or on their own, these women's Smartwool Merino 150 Lace base layer bottoms are just the thing for an afternoon of snowshoeing or cool-weather hiking.

    Weight: Lightweight

    Underwear BottomsBase Layer Bottoms

    Merino 150 Lace V-Neck Base Layer Top - Women's
    Smartwool

    Whether you wear it on its own or as a base layer, the women's Smartwool Merino 150 Lace V-Neck short-sleeve top is designed for comfort when you're on the move.

    Weight: Lightweight

    Underwear TopsBase Layer Tops

    Merino 185 Base Layer Bottoms - Men's
    REI Co-op

    Soft, breathable and naturally odor resistant, the ultrafine merino wool of the men's REI Co-op Merino 185 base layer bottoms is just as beloved while sweating on the trail as sleeping in the tent.

    Weight: Lightweight

    Underwear BottomsBase Layer Bottoms

    Merino 185 Base Layer Bottoms - Men's Tall Sizes
    REI Co-op

    Soft, breathable and naturally odor resistant, the ultrafine merino wool of the men's REI Co-op Merino 185 base layer bottoms is beloved for sweating on the trail—and just sleeping!

    Weight: Lightweight

    Underwear BottomsBase Layer Bottoms

    Merino 185 Base Layer Bottoms - Women's
    REI Co-op

    Just as beloved while sweating on the trail as sleeping in the tent, the ultrafine merino wool of the women's REI Co-op Merino 185 base layer bottoms is soft, breathable and naturally odor resistant.

    Weight: Lightweight

    Underwear BottomsBase Layer Bottoms

    Merino 185 Base Layer Bottoms - Women's Plus Sizes
    REI Co-op

    Just as beloved while sweating as while sleeping, the ultrafine merino wool of the women's REI Co-op Merino 185 base layer bottoms is soft, breathable and naturally odor resistant.

    Weight: Lightweight

    Underwear BottomsBase Layer Bottoms

    Merino 185 Base Layer Top - Men's
    REI Co-op

    Hike, bike and even sleep in the men's REI Co-op Merino 185 short-sleeve base layer top. The soft, breathable and naturally odor-resistant ultrafine merino wool makes it an ideal next-to-skin layer.

    Weight: Lightweight

    Underwear TopsBase Layer Tops

    Merino 185 Base Layer Top - Women's
    REI Co-op

    Soft, breathable and naturally odor resistant, the women's REI Co-op Merino 185 short-sleeve base layer top is an ideal next-to-skin layer for hiking, cycling and even sleeping.

    Weight: Lightweight

    Underwear TopsBase Layer Tops

    Merino 185 Base Layer Top - Women's Plus Sizes
    REI Co-op

    The women's REI Co-op Merino 185 short-sleeve base layer top is an ideal next-to-skin layer for hiking, cycling and even sleeping, thanks to the soft, breathable, naturally odor-resistant merino wool.

    Weight: Lightweight

    Underwear TopsBase Layer Tops

    Merino 185 Long-Sleeve Base Layer Top - Men's
    REI Co-op

    Soft, breathable and naturally odor resistant, the ultrafine merino wool of the men's REI Co-op Merino 185 long-sleeve base layer top is beloved while sweating on the trail—and sleeping in the tent.

    Weight: Lightweight

    Underwear TopsBase Layer Tops

    Merino 185 Long-Sleeve Base Layer Top - Men's Tall Sizes
    REI Co-op

    Soft, breathable and naturally odor resistant, the ultrafine merino wool of the men's REI Co-op Merino 185 long-sleeve base layer top is beloved for both sweating on the trail and just sleeping.

    Weight: Lightweight

    Underwear TopsBase Layer Tops

    Merino 185 Long-Sleeve Base Layer Top - Women's
    REI Co-op

    Beloved while sweating on the trail—and sleeping in the tent—the ultrafine merino wool of the women's REI Co-op Merino 185 long-sleeve base layer top is soft, breathable and naturally odor resistant.

    Weight: Lightweight

    Underwear TopsBase Layer Tops

    Merino 185 Long-Sleeve Base Layer Top - Women's Plus Sizes
    REI Co-op

    Beloved while hiking, biking and even just sleeping, the ultrafine merino wool of the women's REI Co-op Merino 185 long-sleeve base layer top is soft, breathable and naturally odor resistant.

    Weight: Lightweight

    Underwear TopsBase Layer Tops

    Merino 185 Long-Sleeve Half-Zip Base Layer Top - Men's
    REI Co-op

    Soft and breathable, the ultrafine merino wool of the naturally odor-resistant men's REI Co-op Merino 185 long-sleeve half-zip base layer top is ideal for sweating on the trail—and sleeping in a tent.

    Weight: Lightweight

    Underwear TopsBase Layer Tops

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