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NEW CUSTOMERS  - SAVE 15% - USE CODE: NEW2TREKT. EXCLUDES SELECT BRANDS/ITEMS.

Women's Baselayers & Underwear

129 Products

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  • Thin yet effective, Columbia's midweight baselayer is perfect for skiing or cold-weather hiking.

    Our Price:
    $22.00
  • Made with 100% Merino Wool, the Woolies 150 is extremely soft on skin. Wicking properties pull sweat away from the core to provide for more comfort. Excellent as a baselayer, it can also be used as a standlone on more moderate days.

    Our Price:
    $65.88
  • The Women's Lightweight Zip T features sculpted sleeve panels which eliminate chafing and provide a body enhancing fit. The back bottom hem is a little longer for increased coverage against chilly gusts.

    Our Price:
    $47.50
  • Smartwool's Lightweight Bottoms feature seam construction throughout the legs to offer a better fit and a performance look. Perfect for higher aerobic activities in colder weather.

    Our Price:
    $85.00
  • Ibex's heaviest baselayer is cut from 18.5 micron, 220 g/m2 Merino wool. You can rock this all day baselayer on the coldest adventures of the year and close out the evening at the lodge, all while wearing the same base.

    Our Price:
    $77.00
  • The MerinoMax full zip kicks cold weather to the curb with dense double jersey knit, pop-out hand mitts, and a draft flap. A zip-shut sleeve pocket keeps tunes at the ready.

    Our Price:
    $108.00
  • Who says baselayers have to be boring? Hot Chillys' best selling baselayer fabric, the Micro-Elite, has moisture wicking and antimicrobial properties to help keep you comfortable throughout your adventures.

    Our Price:
    $54.00
  • Like an extra layer of skin, the Microweight Tee moves sweat and moisture away from the body on those hot, muggy trail adventures. With great breathability and light weight, take the Microweight with you on hot, warm treks.

    Our Price:
    $42.00
  • An instant classic, this all-purpose seamless bra supports a variety of sizes and is made with wicking recycled polyester for exceptional moisture management. Wear it for everything from trail running to climbing to day hikes.

    Our Price:
    $35.00
  • The barely Everyday Bra is sure to hold you in place when you're heading through distant lands or hitting the backcountry with friends and family. This comfortable racerback bra is made of a soft, quick-drying recycled polyester/spandex blend.

    Our Price:
    $45.00
  • Smartwool constructed this tank's fit to be longer in the body, with a shaped bottom opening that's higher on the sides, and lower in front and back. An updated shoulder construction fits over racer back-styled sports bras.

    Our Price:
    $36.00
  • The stylish design sets this baselayer aside from all the other boring, bland colors out there. Take the Women's peach Sub Print Crewneck on your next cold ski/snowboarding trip.

    Our Price:
    $36.00
  • A cold-weather, next-to-skin baselayer with a venting zipper, made with 100% Merino Wool; ideal for layering or wearing on its own.

    As Low as:
    $63.00
  • Patagonia's most breathable synthetic baselayer keeps you dry and comfortable in cool conditions.

    Our Price:
    $27.00
  • Instead of regular side seams, this women's crew features sculpted side panels which eliminate chafing and enhance the fit to your body.

    Our Price:
    $59.50
  • The NTS 250 pattern hoody is out the door already. Crisscross neckline and thumbholes thwart the cold on cross-country trails. The hood works with your ponytail and helmet for the dawn commute.

    Our Price:
    $78.00
  • This medium-support bra embraces your body with non-stop, moisture-wicking comfort.

    SAVE 30%

    Lole Jazzy Bra

    Our Price:
    $40.60
  • The retro styling of this fixed-triangle beauty just says “Brigitte Bardot”!

    SAVE 30%

    Lole Cebu Top

    Our Price:
    $35.00
  • Stay comfortable and dry in a wide range of conditions in Patagonia's most versatile baselayer.

    Our Price:
    $55.00
  • A comfortable core makes everything else feel capable of more. The PhD SmartLoft Divide vest pairs Merino lining with a wool-insulated quilted nylon shell. Wear it for maximum warmth on epic outings.

    Our Price:
    $102.00
  • Made from Smartwool's warmest baselayer fabric, these bottoms will keep you warm even on the coldest summits. Features a covered elastic waistband, flatlock seam construction and a midrise waist.

    Our Price:
    $66.50
  • Under Armour Women's ColdGear Devo Leggings are the perfect baselayer for those morning jogs!

    Our Price:
    $69.99
  • Wear the Wicked Lite trail running, backpacking or urban exploring, all on the same day! Designed to pull moisture away from the body, the Wicked Lite is an essential baselayer for the woman constantly on the go.

    As Low as:
    $12.25
  • Lole's technical, yet feminine layering piece goes the distance in their four-way stretch, moisture-wicking Cool Fleece. This soft polyester/elastane blend keeps you warm, feeling dry and smelling good.

    Our Price:
    $48.00
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