Women's Clothing - Underwear - Lightweight Long Underwear - Tops

Arc'teryx Rho LT Zip Neck Top - Women's $59.47 An Arc'teryx Women's 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.

Arc'teryx Rho LTW Zip Top - Women's $98.95 Soft, itch-free merino wool makes the Arc'teryx Women's 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.

Arc'teryx Rho SL Crew - Women's $55.21 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.

Backcountry.com Merino Bliss Lightweight Long Underwear Top - Women's $47.97 With its soft, naturally odor-resistant 18-micron Merino wool knit and neck zip, our Backcountry.com Women's Merino Bliss Lightweight Top covers you in functional comfort, minus the synthetic funk factor.

Backcountry.com Merino Crew Shirt - Long-Sleeve - Women's $35.97 Uncompromising in both quality and form, our Backcountry.com Women's 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.

Burton Lightweight Top - Women's $39.95 After a day of riding in the Burton Women's Lightweight Top, you'll start to wonder why you haven't been riding in DryRide Ultrawick fabric.

DAKINE Vibe Lightweight Stripe Crew Top - Women's $39.95 DAKINE Vibe Lightweight Stripe Crew Top - Women's

Ibex Indie Crew Top - Women's $84.95 With its versatile midweight Merino wool fabric, smooth feel, and semi-fitted design, the Ibex Women's Indie Crew will makes regular appearances in your workout wardrobe.

Ibex Woolies Crew Top - Women's $74.95 Throw out your synthetic long johns and make the switch to merino wool with the Ibex Women's Woolies Crew Top. This lightweight, long underwear top gives you super soft, temperature-regulating insulation.

Icebreaker BodyFit 200 Tank - Women's $38.21 The Icebreaker Womens BodyFit 200 Tank fits smoothly, and its soft fibers and flatlock stitching eliminate any itch or chafing.

Icebreaker BodyFit150 Atlas T-Shirt - Short Sleeve - Women's $49.95 Go for a trail run or a hike in your merino wool Icebreaker Women's BodyFit150 Atlas Short-Sleeve T-Shirt. The lightweight Atlas T-Shirt transports sweat away from your skin and helps regulate your body temperature.

Icebreaker BodyFit200 Chakra 1/4 Zip Top - Long-Sleeve - Women's $63.71 The Icebreaker Skin200 Chakra Zip Top for women is a versatile base layer with an athletic cut and zip-neck.

Icebreaker BodyFit200 Chakra 1/4-Zip Print - Long-Sleeve - Women's $94.95 You can wear the Icebreaker Womens BodyFit200 Chakra -Zip Print Top as a ski baselayer, but it might make you sad to hide that fun print under all your layers.

Icebreaker BodyFit200 Oasis Crewe - Long-Sleeve - Women's $55.21 Experience a haven of warmth and comfort in the merino wool Icebreaker Women's BodyFit200 Oasis Crewe Top.

Icebreaker BodyFit200 Oasis Crewe-Fleur - Long-Sleeve - Women's $84.95 Think the design on the sleeves of the Icebreaker Women's BodyFit200 Oasis Crewe-Fleur is just fleur-de-lis pedals? From a distance, that's what it appears to be.

Icebreaker BodyFit200 Oasis Print Crewe - Long-Sleeve - Women's $84.95 This limited-edition version of the Women's BodyFit200 Oasis Crewe features a design that Icebreaker modeled after the structure of Kiwi snowflakes.

Icebreaker Nature Delta Scoop Top - Long-Sleeve - Women's $55.21 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.

Icebreaker Nature Lite Haven V-Neck Top - Long-Sleeve - Women's $79.95 Wear the Icebreaker Women's Nature Lite Haven V-Neck Top by itself or as your baselayer.

Icebreaker Nature Lite200 Vista Top - Long-Sleeve - Women's $63.71 The delicate prints on the Icebreaker Womens Long-Sleeve Nature Lite200 Vista Top make it much more than a wicking merino base layer.

Icebreaker Nature Sweetheart Top - Long-Sleeve - Women's $51.96 With a low neckline, pigment print, and slim fit, the new Icebreaker Women's Nature Ultralite SweetHeart Long-Sleeve Top has style you rarely find in long underwear.

Icebreaker Nature Ultralite Sweetheart Top - Short-Sleeve - Women's $54.95 When you need a bit of extra warmth while in the mountains, bring the Icebreaker Women's Nature Ultralite Sweetheart Top.

Icebreaker SuperFine140 Flight T Lite T-Shirt - Short-Sleeve - Women's $50.96 Who wears wool in summer? Sheep do. And you will too, as soon as you try on your Icebreaker Womens SuperFine140 Flight T Lite T-Shirt.

Icebreaker SuperFine140 Tech Lite T-Shirt - Short-Sleeve - Women's $54.95 Wool in summer? Hell yeah. Pull on your Icebreaker Womens SuperFine140 Tech Lite T-Shirt to trail run or tour a muggy city.

Isis Peony Crew Neck - Long-Sleeve - Women's $32.37 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.

Marmot Lightweight Crew - Long-Sleeve - Women's $41.95 Slip into the Marmot Women's Lightweight Long-Sleeve Crew whether you need a wicking antimicrobial base layer for your weekend adventure, or just a silky-smooth top while you wind down after a long day at work.

Marmot Lightweight Crew Shirt - Short-Sleeve - Women's $37.95 The Marmot Womens Lightweight Crew Shirt wicks moisture and fights odors from the ski hill to the mountain trails.

Marmot Lightweight Zip-Neck Shirt - Long Sleeve - Women's $47.95 Marmot made the new Women's Lightweight Zip Neck Long Sleeve Shirt with quick-drying Polartec Power Dry material and funk-fighting Cocona performance treatment so you can hit the trail harder without smelling like your socks.

Mountain Hardwear Advance Lightweight Long-Sleeve Crew - Women's $44.95 Not only does the Womens Advance Lightweight Long-Sleeve Crew use Mountain Hardwears Advance Lightweight synthetic fabric, but it also has channeled construction for better wicking.

Mountain Hardwear Lightweight Power Stretch Zip Top - Women's $55.96 Keep your routes as versatile as the Mountain Hardwear Womens Lightweight Power Stretch Zip Top. Quick drying and moisture wicking, this performance top helps you stay comfortable.

Mountain Hardwear Microchill Zip-Top - Women's $32.97 The Mountain Hardwear Women's Micro Chill Zip Tee lets you continue your morning trail runs right up until the first snow.

Mountain Hardwear Power Stretch Zip Top - Long-Sleeve - Women's $84.95 Keep your routes as versatile as the Mountain Hardwear Womens Lightweight Power Stretch Zip Top. Quick drying and moisture wicking, this performance top helps you stay comfortable.

Patagonia Capilene 1 Graphic Scoop Shirt - Long-Sleeve - Women's $40 From sunrise surf sessions to afternoons at the crag, the Patagonia Womens Capilene 1 Graphic Scoop Shirt features a fully recycled polyester construction that manages moisture and some artsy graphics to keep you looking fresh.

Patagonia Capilene 1 Scoop Neck Shirt - Long-Sleeve - Women's $22.8 The Patagonia Women's Capilene 1 Long-Sleeve Scoop-Neck is a silkweight base layer you'll wear all year.

Patagonia Capilene 1 T-Neck Top - Women's $28 Pull on the Patagonia Women's Capilene 1 Turtleneck Top when you cross country ski in the spring, climb in cool weather, or set up camp after the sun has gone down on a warm day.

Patagonia Capilene 2 V-Neck Top - Long-Sleeve - Women's $26.6 Pull on the Patagonia Women's Capilene 2 V-neck base layer and meet your friends at the trailhead. Wicking Capilene fabric gives this slim-fit V-neck crazy breathability.

Patagonia Capilene 2 Zip-Neck Shirt - Long-Sleeve - Women's $25.8 Stay cool in summer and warm in winter with the lightweight Patagonia Women's Capilene 2 Zip-Neck base layer.

Patagonia Merino 1 Crew - Long-Sleeve - Women's $90 Patagonia used a smart blend of merino and recycled polyester fibers to create the Women's Merino 1 Long-Sleeve Crew.

Patagonia Merino 4 Classic Zip Neck Shirt - Long-Sleeve - Women's $150 On the skin track up and the epic turns down, the Patagonia Womens Merino 4 Classic Zip Neck Shirt lets its moisture-wicking, odor-fighting, insulating capabilities really shine.

Patagonia Wool 2 T-Neck - Long-Sleeve - Women's $48 Layer the Patagonia Women's Wool 2 Long-Sleeve T-Neck under your softshell for a ski-touring adventure or under a sweater for a romantic after-dinner sleigh ride.

SmartWool Microweight Crew Top - Long-Sleeve - Women's $64.95 Wear the SmartWool Women's Microweight Crew top for cool- or warm-weather aerobic activities or as a next-to-skin base layer.

SmartWool Microweight Zip-T - Long-Sleeve - Women's $74.95 SmartWool Microweight Zip-T - Long-Sleeve - Women's

SmartWool NTS Lightweight V-Neck Long Underwear Top - Women's $69.95 SmartWool NTS Lightweight V-Neck Long Underwear Top - Women's

Spyder Dreamy Mock Top - Long-Sleeve - Women's $53.97 Be the envy of pandas everywhere when you don the Spyder Womens Dreamy Long-Sleeve Mock Top. Bamboo naturally resists odor and pulls moisture away from the skin.

Spyder Dreamy V-Neck Top - Long-Sleeve - Women's $53.97 The Spyder Womens Dreamy V-Neck Long-Sleeve Top is like the perfect datethanks to its bamboo fabric, this base layer is odor-resistant and wont leave you feeling clammy at the end of the day.

The North Face Fusion Top - Women's $49.95 The North Face Fusion Top - Women's

The North Face Softwool Crew Long Underwear Top - Women's $43.98 Australian merino wool makes The North Face Women's Softwool Crew Long Underwear Top softer, warmer when wet, and less stinky than polyesterso what are you waiting for?

The North Face Stretch Softwool Tee - Women's $98.95 If youre sick of your synthetic baselayer top smelling unbearable after a day of alpine climbing or skiing, but youre apprehensive about a full-wool top, look at The North Face Womens Stretch Softwool Tee.

The North Face XTC Lightweight 1/4 Zip Long Underwear Top - Women's $29.37 The North Face Women's XTC Lightweight Zip Long Underwear Top is far from a typical wicking base layer. Carbonized bamboo polyester fabric lets this top handle 50% more moisture than standard polyester can.

The North Face XTC Lightweight 1/4-Zip Long Underwear Top - Women's $41.95 The North Face XTC Lightweight -Zip Long Underwear Top does everything in its power to help regulate your body temperature and handle odor while you hike, ski, and climb.

The North Face XTC Lightweight Crew Long Underwear Top - Women's $37.95 Your friend was impressed with what the bamboo fibers in The North Face Womens XTC Lightweight Crew Long Underwear Top did. So she collected the bamboo plant off her work desk and made a shirt out of it. Frankly, her shirt looks pretty uncomfortable.

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