Before you suit up for snowboarding, pull on the 686 Womens Betsey Long Underwear Top.

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686 made the Olivia Womens Long Underwear Top to fit snugly so it doesnt bunch up under your jacket.

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An Arcteryx Womens Rho LT Zip Neck Top serves as an ideal foundation for backcountry travelers, with a tailored stretchy fit that caters specifically to the backcountry lady.

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Soft, itch-free merino wool makes the Arcteryx Womens Rho LTW Zip Top warm and comfortable on chilly days. This all-natural top insulates in a wider range of temperatures than a synthetic shirt.

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Bring along the Arcteryx Womens Rho SL Crew for a weekend of winter camping and stay warm inside the tent and out. Soft next to your skin, this ultralight base layer wicks away moisture.

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A Womens Rho SL Long-Sleeve Crew Neck from Arcteryx is an extra smooth base-layer with flair.

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With its soft, naturally odor-resistant 18-micron Merino wool knit and neck zip, our Backcountry.com Womens Merino Bliss Lightweight Top covers you in functional comfort, minus the synthetic funk factor.

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Uncompromising in both quality and form, our Backcountry.com Womens Merino Long-Sleeve Crew Shirt offers the superior moisture managing, naturally anti-odor, and comfort of super-fine New Zealand Merino at a price that might make you pee a little.

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After the sun sets, the Columbia Womens Appalachian Travel Weight Top keeps you warm, and it also wicks perspiration.

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What should your ski ensemble consist of today? When you get up early to dress for a ski day your thoughts arent usually quite that clear, which is why Columbia made it easy for youstart with the Womens Glacial Fleece -Zip Top.

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Your arms do a lot for you. The Columbia Womens Graphic Glacial Fleece is a lightweight ski underwear top with flower decorations on the sleeves that let your arms know you care.

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The Dakine Womens Paneled Crew is lightweight and low-bulk. Layering doesnt have to mean looking like a wedding cake.

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When you land in Paris and begin the trek to the Alps, make sure to pack the DAKINE Womens Paris Crew on the top of your bag. This lightweight single layer keeps you warm and dry on the slopes.

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Put the boring monochrome top back in your drawer, and pull out the Foursquare Womens First Layer Top for wicking and houndstooth chic.

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Throw out your synthetic long johns and make the switch to merino wool with the Ibex Womens Woolies Crew Top. This lightweight, long underwear top gives you super soft, temperature-regulating insulation.

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The Icebreaker Skin200 Chakra Zip Top for women is a versatile base layer with an athletic cut and zip-neck.

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Experience a haven of warmth and comfort in the merino wool Icebreaker Womens BodyFit200 Oasis Crewe Top.

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The low-cut scoop neck gives you plenty of room to breathe whether you wear the Icebreaker Womens Nature Delta Scoop Top as a base layer for ski trips or your only layer for warm fall backpacking trips.

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With a low neckline, pigment print, and slim fit, the new Icebreaker Womens Nature Ultralite SweetHeart Long-Sleeve Top has style you rarely find in long underwear.

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Slip into the Isis Womens Peony Long-Sleeve Crew Neck before facing Old Man Winter. Its lightweight nylon fabric layers easily under a mid-layer while its seamless construction wont rub you the wrong way.

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