Mens Clothing - Long Underwear Lightweight Tops

These Mens Clothing - Long Underwear Lightweight Tops are available from Backcountry.com ...who provide free shipping for orders over $50 and have an Unlimited Return Policy.

Prices correct at time of writing - subject to change

Patagonia Merino 2 Lightweight Zip-Neck Top - Men's Black

$100

The Patagonia Men's Merino 2 Lightweight Zip-Neck Top is a versatile, long-sleeve shirt that can be used for climbing in cooler weather or as a baselayer for skiing or snowboarding in the early winter or spring. Patagonia got the merino wool used in this
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Patagonia Merino 2 Lightweight Zip-Neck Top - Women's Birch White

On sale - now $60 - was $100

Wear the Patagonia Women's Merino 2 Lightweight Zip-Neck Top for hiking, camping, or climbing from fall to winter. This lightweight shirt uses merino wool so you can breathe freely and not smell like a foot, and it has polyester for durability and fast dr
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Icebreaker BodyFit 200 Oasis Hooded Top - Men's Aegean/Rocket

On sale - now $76.99 - was $109.99

When spring slides in but the snow's still dropping, the Icebreaker Men's BodyFit 200 Oasis Hooded Top makes a great baselayer at the ski resort. Its merino wool regulates your body temperature and stays fresh after extended uses. The hood warms your nogg
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Icebreaker IKA 1/2-Zip Top - Long-Sleeve - Men's Mossy Oak Break Up Infinity

On sale - now $71.49 - was $109.99

Layer the Icebreaker IKA 1/2-Zip Men's Long-Sleeve Top under a shell or wear it on its own when you're hunting, fishing, hiking, and camping. The 1/2-zip design and high collar help you regulate your temperature, while the flatlock seams and naturally odo
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Icebreaker BodyFit 200 Ika Zip-Neck Top - Women's Mossy Oak Break-Up Infinity/Magenta

On sale - now $55 - was $109.99

Before you head out the door on this year's hunt, make sure you have a baselayer on that's going to keep you comfortable and out in the woods longer. The Icebreaker Women's BodyFit 200 Ika Zip-Neck Top is made with merino wool to provide better body heat
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Icebreaker BodyFit 200 Oasis Hooded Top - Women's Black Rosette

$109.99

If you are a cool-weather layering minimalist, the newIcebreaker Women's BodyFit 200 Oasis Hooded Top was made for you. This merinowool baselayer top provides more warmth for your noggin and neck without the needfor extra accessories. The hood fits snugly
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Icebreaker BodyFit 200 Oasis Simon Beck Graphic Hooded Top - Women's Blizzard Heather Rosette

On sale - now $55 - was $109.99

The ski slopes just became a lot more comfortable thanks to the Women's BodyFit 200 Oasis Simon Beck Graphic Hooded Top from Icebreaker. Merino wool is not only comfortable, it's also naturally odor-resistant, which you'll certainly appreciate when you st
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SmartWool Lightweight Wind Zip Top - Men's Graphite

On sale - now $59.98 - was $119.95

Whether you use your SmartWool Lightweight Wind Zip Top as a high-performance baselayer for skiing or as a stand-alone jacket for shoulder-season trail running, this versatile pullover gives you all-season comfort in a wide range of conditions. When you'r
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Icebreaker BodyFit 260 Tech Zip-Neck Top - Men's Black

On sale - now $95.99 - was $119.99

Icebreaker uses magnificent merino wool in its Men's BodyFit 260 Tech Zip-Neck Top to keep you unbelievably comfortable at the ski resort. It regulates your body temperature so you stay warm and cool when you need to. It's naturally antimicrobial so it'll
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Bogner - Fire+Ice Alexia Top - Women's Pink Spacedye

On sale - now $129.32 - was $198.95

The Bogner Fire and Ice Women's Alexia Top is a cozy baselayer to ski in. Its fabric feels super soft against the skin, and it also wicks moisture and provides a 4-way stretch for a superior performance on the slopes. Bogner added a 1/4-zip front to this
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Patagonia Capilene 4 Expedition-Weight One-Piece Suit - Women's Black

On sale - now $129.35 - was $199

Quickly becoming a favorite among alpine and snow ambassadors, the Patagonia Women's Capilene 4 Expedition-Weight One-Piece Suit eliminates the extra seams and potential cold spots of a traditional top and bottom layering system. Made from the warmest and
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Burton Lightweight Tank Top - Women's True Black

$29.95

There are times when bikini snowboarding is a good idea, like the very last run of the season. Rock the Burton Women's Lightweight Tank Top as your mild-weather snowboarding baselayer, and feel the airy comfort of bikini riding without the possibility of
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Burton Lightweight Tech Tee - Men's True Black

$34.95

Ideal for year-round action, the Burton Men's Lightweight Tech Tee works just as well combined with warmer layers mid-winter as it does when worn solo in summer. Constructed to ditch heat-robbing moisture and fight funky build up, Dryride Ultrawick Lightw
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Burton Lightweight Scoop Top - Women's Kamana Wanna Lei Ya

On sale - now $24.46 - was $34.95

You don't always need a thick and heavy baselayer, especially in early or late season conditions when the temperature isn't exactly frigid. But you do always want a quick-drying and highly breathable layer between your skin and your outerwear or midlayer,
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Patagonia Capilene 1 Silkweight T-Shirt - Short-Sleeve - Women's Black

On sale - now $22.75 - was $35

To manage your temperature and moisture on multi-day backcountry expeditions, the Patagonia Women's Short Sleeve Capilene 1 Silkweight T-Shirt is made from Patagonia's lightest-weight Capilene performance baselayer fabric. Highly breathable and quick to d
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Patagonia Capilene 1 Silkweight Stretch Crew Top - Women's Diamond Dancer/Tyrian Purple

$39

Help your body keep you cool and comfortable by wearing the Patagonia Women's Capilene 1 Silkweight Stretch Crew Top. After all, your body is busy keeping you moving, and taking in all of the beautiful things around you. The Capilene 1 Silkweight Stretch'
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Burton Lightweight Crew - Men's True Black

$39.95

Sure, it's made by Burton, but don't think that the Men's Lightweight Crew is a winter-only top. The ultra-lightweight DryRide Ultrawick fabric pulls moisture away from your skin to keep you warmer in the winter and cooler in the summer, an anti-microbial
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DAKINE Quick Draw Crew Top - Men's Black

On sale - now $25.97 - was $39.95

If you didn't wear a baselayer under your board jacket it would be pretty uncomfortable under there (chafing, sweat and all). So throw on the Dakine Men's Quick Draw Crew Top to control your under-jacket microclimate. The Quick Draw lives up to it's name
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Burton Lightweight Crew - Women's Kamana Wanna Lei Ya

On sale - now $27.96 - was $39.95

When the weather calls for sunny park laps, stay dry and comfy in the Burton Women's Lightweight Crew. It has a lightweight Dryride Ultrawick fabric that wicks sweat to keep you cool and dry, and the extra-long cut ensures that it stays tucked-in when you
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Icebreaker Everyday Cami - Women's Black

On sale - now $31.99 - was $39.99

Go straight from your morning run to afternoon errands in the Icebreaker Women's Everyday Cami. The merino wool fabric regulates temperature to keep you comfy when you're working out, and it also fights odor so you don't have to change before going out in
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Backcountry Lightweight Crew Neck Top - Men's Black

On sale - now $31.46 - was $44.95

We were all craving the best baselayer here at Backcountry. com, so we made the Men's Lightweight Crew Neck Top. This versatile baselayer serves us well whether we're skiing dawn patrols, backpacking in the alpine, hiking, or running. Its fabric wicks moi
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The North Face Light Crew Neck Top - Men's Graphite Grey

$44.95

Hoof it to the summit, turn around, and enjoy your turns in The North Face Men's Light Crew Neck Top. A perfect baselayer for the entire ski season, including those early- and late-season days when the mercury is up, this lightweight top features FlashDry
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Backcountry.com Lightweight Crew Neck Top - Women's Black

On sale - now $31.46 - was $44.95

Here at Backcountry. com, we aspire to give you the best gear for all your outdoor adventures, which is why you can rely on the Women's Lightweight Crew Neck Top for year-round performance whether you're skiing, running, backpacking, hiking, or alpine cli
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Patagonia Capilene 2 Lightweight T-Shirt - Short-Sleeve - Men's Black

$45

Patagonia used its most breathable baselayer fabric to make its Men's Capilene 2 Lightweight T-Shirt so you can run, hike, and climb without getting instantly soaked in sweat. This short-sleeve shirt uses only polyester to keep it lightweight and to keep
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Patagonia Capilene 2 Lightweight V-Neck Top - Women's Black

$45

Running along snow-dotted ridgelines, hiking in the early hints of winter, or playing red-light-green-light in the stadium parking lot while tailgating means your body is going to know a wide range of temperatures. The Patagonia Women's Capilene 2 Lightwe
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Patagonia Capilene 2 Lightweight V-Neck T-Shirt -Short-Sleeve - Women's Cleanline Stripe/Tailored Grey

$45

Throw on the Patagonia Capilene 2 Lightweight V-Neck T-Shirt as a standalone layer for fall morning runs or under some layers as you slash your way through waist-deep powder on a chilly December morning. This shirt is extremely quick-drying, as well as mo
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Patagonia Capilene 1 Graphic Crew - Long-Sleeve - Men's Fitz Roy Bison/White

$49

Patagonia designed its Men's Capilene 1 Graphic Crew for practically any warm-weather sport. Made mostly of polyester, this crew wicks moisture to keep you dry when you work up a sweat, and a bit of spandex gives you a comfortable amount of stretch. Patag
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Patagonia Capilene 2 Lightweight Crew - Men's Black

$49

You don't need anything holding you back when you're pulling through the final crux of your climb or running the last quarter of your marathon, so get the Patagonia Men's Capilene 2 Lightweight Crew. Patagonia made this shirt with its stretchiest baselaye
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Patagonia Capilene 1 Silkweight Graphic Crew Shirt - Women's Alyssa Stripe: Tailored Grey

On sale - now $26.95 - was $49

Early spring trail runs and midwinter dawn patrols often start with the same piece of clothing, the Patagonia Women's Long-Sleeve Capilene 1 Silkweight Graphic Crew Shirt. The difference comes with what, if anything, going over this silky soft, barely-the
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Backcountry.com LIghtweight Snap Henley Top - Men's Black

On sale - now $34.96 - was $49.95

We designed the Backcountry. com Men's Lightweight Snap Henley Top to the utmost standards of versatility and performance. This is the type of baselayer you want when you're sweating your ass off on a speedy ski day or a hard hike. It wicks moisture and d
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Helly Hansen Active Flow Top - Men's Black

$49.95

The Men's Active Flow Top is Helly Hansen's versatile baselayer, featuring Lifa advanced moisture-wicking technology for year-round comfort.
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Homeschool Mouth Breather Henley Top - Men's Native Print

On sale - now $17.48 - was $49.95

The Homeschool Mouth Breather Henley Top works hard to keep you feeling good while you ride. Cocona-infused fabric naturally inhibits the growth of creepy bacteria that can cause unfresh funk, and it helps wick moisture so you stay dry even if you work up
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Backcountry.com Lightweight Snap Henley Neck Top - Women's Black

On sale - now $34.96 - was $49.95

Rock the Goat like it's your job with the Women's Lightweight Snap Henley Neck Top from Backcountry. com. Even if you're not that into goats, you can still appreciate the style and quality of this semi-fitted 3-button henley shirt, which features thumbhol
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Roxy Glimmer Top - Women's Toluca Stripe/Anthracite

On sale - now $24.98 - was $49.95

The Roxy Women's Glimmer Top is just as ready for a full day in the park as it is for apres drinks in the ski lodge.
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Icebreaker Everyday Crew Top - Short-Sleeve - Men's Black

On sale - now $39.99 - was $49.99

Make everyday that much better with the Icebreaker Men's Everyday Short-Sleeve Crew Top. Made entirely from merino wool, this lightweight shirt is breathable, moisture-wicking, and naturally antimicrobial, meaning you can wear it multiple days in a row wi
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Mammut Go Dry Top - Long-Sleeve - Men's Black

$54.95

The Mammut Men's Go Dry Top offers year-round comfort whether you're skiing the resort or summer training in the mountains. Its fast-drying stretch fabric provides a full freedom of movement, and the waffle backing wicks moisture to keep you comfortably d
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Helly Hansen Daybreaker Half-Zip Fleece Top - Women's Miami

$54.95

Stay warm at cold campsites and ski resorts with the Helly Hansen Women's Daybreaker Half-Zip Fleece Pullover.
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Cloudveil Lightweight Crewneck Top - Men's Cavier

On sale - now $38.49 - was $54.99

Make sure your time on the hill is pleasant with the Men's Lightweight Crewneck Top from Cloudveil. The synthetic fabric of this top is naturally moisture-wicking to help you avoid that nasty freezing after a good sweat. Since this top is semi-fitted, it
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Cloudveil Lightweight Crewneck Baselayer Top - Women's Cavier

On sale - now $35.74 - was $54.99

Keep the moisture off your back with Cloudveil's Lightweight Women's Crewneck Baselayer Top. It wicks sogginess away from your skin, making sure you stay comfortable when you're hiking, skiing, snowboarding, or otherwise getting after it.
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Patagonia Capilene 2 Lightweight Zip-Neck Top - Men's Black

$55

Wear the Patagonia Men's Capilene 2 Lightweight Zip-Neck Top while you run or climb in cooling temperatures in the fall. This long-sleeve shirt was designed to keep you cool as you run your last mile on the trail, and it warms you up while you rappel off
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Patagonia Capilene 2 Lightweight Zip-Neck Top - Women's Black

$55

You're working up a sweat in the backcountryunzip the Patagonia Women's Capilene 2 Lightweight Zip-Neck Top to complement the open knit's airy feel. At the peak, a snack turns into a full conversation; zip it up, and note the backing with kissing welts fo
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Helly Hansen Active Flow 1/2-Zip Top - Men's Black

$59.95

The last thing you want when you're a few days in on your expedition is to be saddled with a wet, soaked baselayer. Make sure that isn't you by throwing on the Helly Hansen Men's Active Flow 1/2-Zip Top. The Lifa Flow and Life Stay Dry technologies work t
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Helly Hansen Dry Charger 1/2-Zip Top - Men's Black

$59.95

Helly Hansen has been perfecting baselayer technologyfor the last forty years and testing it in the harshest conditions, which means that the company has gotten very good at pushing the limits of fabrictechnology. The Lifa Stay Dry fabric in the Men's Dry
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Minus 33 Ticonderoga Lightweight Crew Top - Men's Azure Blue

$59.95

When you finally get fed-up with coming home from your hikes wearing a smelly shirt, get the Minus 33 Ticonderoga Lightweight Crew Top, and start enjoying the naturally breathable and antimicrobial benefits of merino wool. Plus, with it's slim fit, you'll
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686 Airhole Thermal Airtube Top - Women's Plum Heather Colorblock

On sale - now $41.96 - was $59.95

Eliminate the gap between your baselayer and your facemask with the 686 Women's Airhole Thermal Airtube Top. It features a built-in Airhole gaiter that covers your neck and face so you never have to worry about leaving your facemask at home again. A signa
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Burton Tech Top - Women's Bad Influence

On sale - now $29.98 - was $59.95

Enjoy the casual comfort of the Burton Women's Tech Top all season long. The DryRide Ultrawick fabric pulls moisture away from your skin to keep you dry and warm when you're shredding at the resort, and the Boyfriend fit gives it a loose feel so you can w
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DAKINE Astra Crew - Women's Black

On sale - now $41.96 - was $59.95

The Dakine Women's Astra Crew is a lightweight baselayer that dries quickly for sweaty snowboard sessions, and a Microban treatment resists odor for long-lasting freshness.
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Helly Hansen Dry Charger 1/2-Zip Top - Women's Black

$59.95

The Women's Dry Charger 1/2-Zip Top from Helly Hansen uses HH Dry fabric as well as Lifa Stay Dry for moisture-wicking, warmth, and comfort that is essential to your success in the mountains. The half-zip can be pulled down to vent heat when you start wor
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Icebreaker Everyday Crew Top - Long-Sleeve - Women's Black

On sale - now $47.99 - was $59.99

Slide on the Women's Long-Sleeve Everyday Crew Top from Icebreaker and revel in the softness of merino wool as a baselayer under your ski mid-layer or your everyday sweaters.
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Minus 33 Allagash Lightweight Zip-Neck Top - Men's Black

$60.95

With its 17. 5-micron merino wool, the Minus 33 Men's Allagash Lightweight Zip-Neck Top makes a great layer for spring and fall hiking excursions, and with the 1/4-zip front, you can get some extra ventilation when you need it.
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Gramicci Trail Run Winter Wonder Underlayer Turtle Top - Women's Ginger Brown

On sale - now $24.8 - was $62

When the weather outside is frightful, but the people inside aren't delightful, slip into the Gramicci Women's Trail Run Winter Wonder Underlayer Turtle Top, grab your crampons, and go for a snowy trail run. You'll probably want to snag a shell on your wa
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Outdoor Research Sequence Zip-Neck Top - Men's Black

$68.95

When you're spending 12 straight days in a tent, your partner will thank you for wearing the Outdoor Research Sequence Zip-Neck Men's Top. Made of breathable, quick-drying, and moisture-managing blend of polyester and merino wool, it keeps you warm, dry,
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SmartWool NTS Micro 150 T-Shirt - Short-Sleeve - Men's Black

$69.95

Lightweight, ultra-soft, and made of moisture-transferring, temperature-regulating, and odor-controlling merino wool, the Smartwool NTS Micro 150 Men's T-Shirt is down to help you crush it on the trail, the road, or at the gym.
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Millet LD Carline Seamless Top - Women's Black/Noir

On sale - now $34.98 - was $69.95

Looking for a baselayer that's insanely comfortable, form-fitting, and moisture-wicking? Slip on the Millet Women's LD Carline Seamless Top before you earn some turns on a backcountry excursion, lap your local resort, or hike through windy, freezing-cold
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Scott Two2 1/2-Zip Pullover Top - Women's Arcadia Green Heather

On sale - now $45.47 - was $69.95

Wear the versatile Scott Women's Two2 1/2-Zip Pullover Top next to your skin as a baselayer, or wear it as a midlayer over something lighter. With an athletic fit and an anti-chafe chin guard, this highly breathable top is perfect for long days on the slo
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Icebreaker Siren Sweetheart Top - Short-Sleeve - Women's Black

On sale - now $55.99 - was $69.99

The soft, stretchy fabric of the Icebreaker Women's Siren Sweetheart Top feels sweet whether you're working out or roaming around town. Merino wool naturally regulates temperature to keep you cool, and it's blended with Lycra for freedom of movement. The
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Patagonia Merino 1 Silkweight Crew Top - Women's Black

On sale - now $45.5 - was $70

You'll love the Patagonia Women's Merino 1 Silkweight Crew Top whether you're pulling through the crux of your new project on a hot day, trail running over summits, or just getting groceries on your day off. The merino wool is incredibly soft to the touch
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RVCA Virus Compression Top - Long-Sleeve - Men's Black

On sale - now $44.37 - was $73.95

Push your athletic boundaries in the RVCA Men's Virus Compression Top. A collaboration with Virus, the SoCal maker of sports training gear, it's a top designed for support in high-intensity training and athletics. The Virus features a focused compression
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SmartWool Micro 150 Crew - Long-Sleeve - Men's Black

$74.95

From the ski hill to the hiking trail and back, Smartwool's Micro 150 Men's Crew will keep you dry and comfortable while you get after it. It's a lightweight baselayer that's made of 100% merino wool, so it will naturally move moisture away from your skin
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SmartWool NTS Micro 150 Crew - Long-Sleeve - Men's Black

On sale - now $44.97 - was $74.95

Some dude like short sleeves all the time, but if there's an early-morning nip or evening chill when you're running or hiking, the Smartwool NTS Micro 150 Men's Long-Sleeve Crew is pretty nice to have. Plus, it's made of odor-controlling, temperature-regu
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SmartWool NTS Micro 150 Pattern T-Shirt - Short-Sleeve - Men's Bright Orange

$74.95

Bored with awesome 100% merino wool Smartwool shirts? If their moisture-transferring, temperature-regulating, and odor-fighting radness just isn't enough anymore, try the NTS Micro 150 Men's Pattern T-Shirt--it has flatlock seams, UPF-30 sun protectionand
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Arc'teryx Phase AR Crew - Long-Sleeve - Women's Black

$74.95

Shorter days and changing leaves bring a new phase of dressing. The Arc'teryx Women's Long-Sleeve Phase AR Crew provides a solid foundation upon which you may layer in response to dropping temperatures and rising exertion levels. The next-to-skin fit redu
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Helly Hansen Pace 1/2-Zip Lifa Flow Top - Women's Magenta

$74.95

Designed to keep you cool while you push yourself further toward your training goals, the Helly Hansen Women's pace 1/2-Zip Lifa Flow Top will be the top you reach for on those cool days when you refuse to be cooped up in the gym. Made with Helly Hansen's
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Icebreaker BodyFit 200 Oasis Crew - Short-Sleeve - Men's Black

On sale - now $59.99 - was $74.99

Icebreaker made its Men's BodyFit 200 Oasis Short-Sleeve Crew out of merino wool to regulate your body temperature so you'll stay cool when you're working up a sweat under the sun and warm when you dip into the shade of the trees. It's also antimicrobial
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Icebreaker BodyFit 150 Siren Sweetheart Top - Long-Sleeve - Women's Blizzard Heather/Fossil

$74.99

A soft merino wool construction with just a touch of Lycra for extra stretch, the Icebreaker Women's BodyFit 150 Siren Sweetheart is that comfortable, slimming long-sleeve top you've been looking for as a baselayer under sweaters and for those cold winter
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Arc'teryx Phase AR Zip-Neck Top - Women's Black

$78.95

Despite being the middle "child" of Arc'teryx baselayers, the Women's Long-Sleeve Phase AR Zip-Neck Top deserves respect. This mid-weight baselayer fits like a second skin, so you can pile on the layers or wear it alone for a sleek, aerodynamic profile. T
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Arc'teryx Phase SL Zip Neck Top - Women's Black

$78.95

Spring brings big, wet storms and milder temps, so slip on the silkweight Arc'teryx Women's Phase SL Zip Neck Top before you go touring far into the backcountry or up in altitude. It provides ample warmth as an ultralight baselayer and silky-smooth layeri
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Backcountry Merino 150 Base Layer Long Sleeve Men's Blue/Blue/Charcoal

On sale - now $55.3 - was $79

Consider the backcountry. com Merino 150 Men's Long-Sleeve Base Layer the do-it-all replacement for the old cotton shirts you've been trying to ease through yet another season. It's made of super-soft, odor-controlling merino wool, which helps to regulate
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Stoic Alpine Merino 150 Crew Shirt - Long-Sleeve - Women's Charcoal/Charcoal/Nickel

$79

Stoic used a blend of soft merino and quick-drying synthetic material so the Women's Alpine Merino 150 Crew Shirt is capable of keeping you warm and helping you control moisture when you're working up a sweat outside. Wear this baselayer for trail running
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Mountain Hardwear Integral Pro Top - Men's Black

On sale - now $47.97 - was $79.95

Benefiting from the warmth of wool used to mean being itchy, and if you ever got sweaty or wet, you were done for. With the Mountain Hardwear Men's Integral Pro Top, you can feel wool warm while getting the quick-drying and moisture-wicking properties of
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SmartWool Micro 150 Combo T-Shirt - Short-Sleeve - Men's Bright Blue

$79.95

You probably don't want to tell people about your "one-shirt quiver," but if you do choose to go that route, you can't go wrong with the Men's Micro 150 Combo T-Shirt from Smartwool. This form-fitting tee features antimicrobial and moisture-wicking merino
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SmartWool Micro 150 Pattern Crew - Long-Sleeve - Men's Bright Blue

$79.95

When you want a comfortable, temperature-regulating baselayer, you want the merino wool of the Men's Micro 150 Pattern Crew from Smartwool. You'll get an extra shot of moisture-wicking, odor-controlling merino with its long sleeves. Flatlock seams elimina
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SmartWool NTS 150 Pattern Crew Top - Men's (Discontinued) Smartwool Green

On sale - now $51.97 - was $79.95

You can enjoy the temperature-regulating, no-stink properties of the Smartwool Men's NTS 150 Pattern Crew Top year-round thanks to its Merino wool fabric. Whether you're wearing it as a baselayer while skiing or by itself while hiking trails in the summer
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SmartWool NTS Micro 150 Pattern Crew - Long-Sleeve - Men's Cadet Blue

On sale - now $47.97 - was $79.95

Merino wool's the best, so folks need as much of it as they can get--hence the Smartwool NTS Micro 150 Men's Pattern Long-Sleeve Crew. With long sleeves you'll get an extra shot of temperature-regulating, odor-controlling merino, plus full UPF 30 protecti
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Ibex Woolies 150 Scoop Neck Top - Women's Black

$79.95

The Ibex Women's Woolies 150 Scoop Neck Top is so comfy that we think you'll use it more than just a normal baselayer. Its merino wool provides lightweight thermal regulation, natural odor-resistance, and a super soft feel that only gets softer overtime.
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Oakley Rotor Seamless Top - Men's Jet Black

On sale - now $56 - was $80

The seamless construction of the Oakley Men's Rotor Top provides exceptional next-to-skin comfort for your winter pursuits. The BioZone construction is designed to optimize warmth and breathability in areas where it's needed most, so you never feel too ho
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Rab MeCo 120 Top - Men's Beluga

$84.95

The Rab Men's MeCo 120 Top offers lightweight, quick-drying performance that's ideal for a wide range of activities. Wear it as a quick-drying shirt on fast-paced hikes or layer it under your waterproof shell during the winter. Either way, you'll reap the
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SmartWool NTS Lightweight Crew - Men's Black

$84.95

Throw on the Smartwool Men's NTS Lightweight Crew before you head out to get your sweat on. Merino wool fabric rides comfortably, pulls moisture from your skin, and breathes easily, while the sculpted side panel eliminates the side seam to reduce chafing
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SmartWool Micro 150 Henley - Long-Sleeve - Men's Bright Orange

$89.95

Get your baselayer to do more with the Men's Long-Sleeve Micro 150 Henley from Smartwool. This merino wool crew neck features set-in sleeves with shoulder panels and flatlock seams to avoid chafing from pack straps and anything else. With the Micro's UPF-
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Icebreaker BodyFit 200 Oasis Crew - Long-Sleeve - Men's Admiral

On sale - now $71.99 - was $89.99

The Icebreaker Men's BodyFit 200 Oasis Long-Sleeve Crew is an active baselayer made from Bodyfit 200 merino wool to keep your body at an ideal temperature while you explore the outdoors. Merino wool naturally regulates your body temperature and is antimic
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Icebreaker BodyFit 200 Oasis Crew - Long-Sleeve - Women's Aquamarine

On sale - now $71.99 - was $89.99

Merino wool fibers are the perfect all-natural solution forkeeping you comfortable when working up a sweat in cool weather. Wool is soft,breathable, regulates temperature and its antimicrobial properties controlodor. The Icebreaker Women's Long-Sleeve Bod
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Patagonia Merino 2 Lightweight Crew - Men's Black

$90

When you start a long hike in the early-morning chill but you know you'll be coming down the mountain under a hot afternoon sun, wear the Patagonia Men's Merino 2 Lightweight Crew. This long-sleeve baselayer regulates your body temperature--it warms you i
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Mountain Hardwear Integral Pro Zip-Neck Top - Men's Black

On sale - now $66.46 - was $94.95

Made with a merino wool blend, the Mountain Hardwear Men's Integral Pro Zip-Neck is a versatile top that can be worn on its own on cold-weather runs or as a baselayer for skiing.
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SmartWool NTS Lightweight Zip Top - Men's Black

$94.95

The Smartwool Men's LightweightZip Top is like the caped crusader of the baselayer world--at any time, and in any conditions, it's ready to wick moisture, dry in a flash, and naturally fight odors thanks to its soft, stretchy merino wool construction. Fla
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Dynafit Gallium PL Pullover Top - Men's Black

On sale - now $49.98 - was $99.95

The Dynafit Men's Gallium PL Pullover Top is an extremely light midlayer for spring skiing, ski touring, and backcountry skiing. Its Polarlite Light Waffle Tecnostretch fabic is smooth on the outside for easy layering, which the waffle texture on the insi
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Dynafit Gallium Pullover Top - Women's Fiji Blue

On sale - now $69.96 - was $99.95

Apparently evolution saw fit to deny us a decent natural warming system (see also "fur"). The Dynafit Women's Gallium Pullover Top will put you back into competition. Technostretch fabric's waffle texture excels at trapping warmth and releasing odor. The
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SmartWool Lightweight 195 Printed Zip-Neck Top - Women's Black

On sale - now $49.98 - was $99.95

Whether your morning consists of a jog, hike, ski tour, or espresso and a bit of relaxing at the coffee shop, maintain your body temperature in Smartwool's Lightweight 195 Printed Zip-Neck Top for Women. This do-anything top's natural merino wool fibers m
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Icebreaker BodyFit 200 Oasis Graphic Crew - Long-Sleeve - Men's Black/Black Alps Graphic

On sale - now $59.99 - was $99.99

Made of pure merino wool, the Icebreaker BodyFit 200 Oasis Men's Graphic Long-Sleeve Crew is designed to provide lightweight warmth and moisture management in cool conditions. Its slim cut fits easily under a fleece or jacket, flatlock seams are comfortab
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Icebreaker BodyFit 200 Oasis Simon Beck Graphic Crew - Long-Sleeve - Men's Aegean Horn Graphic

On sale - now $59.99 - was $99.99

The Men's Long-Sleeve BodyFit 200 Oasis Simon Beck Graphic Crew from Icebreaker is part of Icebreaker's new artist series and features a DNA-strand graphic for a little pizzazz out on the slopes. Merino wool is naturally odor-resistant, so smelling all fu
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Icebreaker BodyFit 200 Oasis Zip-Neck Top - Men's Admiral

On sale - now $79.99 - was $99.99

The Icebreaker Men's BodyFit 200 Oasis Zip-Neck Top is a lightweight baselayer for cruising around the slopes. Its merino wool fabric regulates your body temperature so you're neither too warm nor too cold, and you can zip down the collar for a little air
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Icebreaker BodyFit 260 Tech Crew - Men's Admiral Overdye Stripe

On sale - now $49.99 - was $99.99

Icebreaker made its Men's BodyFit 260 Tech Crew out of merino wool to keep your body at an ideal temperature when you enjoy the outdoors. Offset shoulder seams prevent uncomfortable rubbing against a backpack. Forward side seams eliminate chafing, and a d
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Icebreaker IKA Crew - Long-Sleeve - Men's Mossy Oak Break Up Infinity

On sale - now $64.99 - was $99.99

Keep a low profile in the Icebreaker IKA Men's Crew, which keeps you equal-parts warm and hidden. Made of 100% merino wool for natural warmth, breathability, and odor resistance, it's perfect for hunting, fishing, and hiking, with flatlock stitching that
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Icebreaker BodyFit 200 Ika Crew Top - Women's Mossy Oak Break-Up Infinity/Magenta

On sale - now $50 - was $99.99

Available in Real Tree and Mossy Oak camouflage, the Women's BodyFit 200 Ika Crew Top will keep you warm while you're stalking that wiley buck, and will keep you hidden when you finally get close enough for a shot. Made with 200g merino wool, the Ika keep
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Icebreaker BodyFit 200 Oasis 1/2-Zip Stripe Top - Women's Cruise

On sale - now $64.99 - was $99.99

The Icebreaker Women's BodyFit 200 Oasis is a lightweight striped top great on its own or as an extra layer during cool-weather hikes. Merino wool naturally regulates your body temperature, breathing when you're hot and retaining warmth in the chill of th
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Icebreaker BodyFit 200 Oasis 1/2-Zip Top - Women's Aquamarine/Aquamarine

On sale - now $79.99 - was $99.99

When you need temperature regulation and comfort over thelong haul, the Icebreaker Women's BodyFit 200 Oasis 1/2-Zip Top is there foryou. Whether layered under your ski jacket or worn under your backpack on amulti-day trek in the mountains, this versatile
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