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Men's Long Underwear

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Arc'teryx Rho LT Zip Top - Long-Sleeve - Men's

Regular: $98.95
Price: $69.27 30% Off!

Only 1 left!

Patagonia Wool 2 Zip Neck Top - Long-Sleeve - Men's

Regular: $80.00
Price: $40.00 50% Off!

Only 2 left!

Icebreaker BodyFit260 Altitude 1/4-Zip Top - Long-Sleeve - Men's

Regular: $109.95
Price: $54.98 50% Off!

Only 3 left!

Best Deals

Salomon Motomesh 1/2 Zip Top Long-Sleeve - Women's

Regular: $69.95

Price: $20.99 70% Off!

Spyder First Place Dry W.E.B. Midweight T-Neck

Regular: $84.95

Price: $33.98 60% Off!

Volcom Slim Under T-Shirt - Short-Sleeve - Men's

Regular: $23.95

Price: $9.58 60% Off!

Men's Lightweight Long Underwear - Tops	Men's Midweight Long Underwear - Tops	Men's Lightweight Long Underwear - Bottoms
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Men's Underwear

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Backcountry.com Merino Zip Tee - Long-Sleeve - Men's

We made our Backcountry.com Men's Merino Long-Sleeve Zip Tee with super-fine New Zealand Merino, flat-locked seams, and a ½ zip chest so you can tackle anything from a 5-day backpacking trip to a run around the neighborhood.

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Available Sizes:S, L, XL, XXL

ON SALE:

$34.98 (50% off)

Backcountry.com Merino Bliss Lightweight Long Underwear Top - Men's

With its soft, naturally odor-resistant 18-micron Merino wool knit and ½ neck zip, our Backcountry.com Men's Merino Bliss Lightweight Top covers you in functional comfort, minus the synthetic funk factor.

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Available Sizes:S, XL, XXL

ON SALE:

$39.98 (50% off)

Icebreaker Beast Boxer Brief w/Fly - Men's

Now you can soothe the savage beast with Icebreaker’s Beast Boxer Brief with fly.

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Available Sizes:S, M, L, XL

ON SALE:

$19.98 (50% off)

Backcountry.com Merino Crew Shirt - Long-Sleeve - Men's

Uncompromising in both quality and form, our Backcountry.com Men'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.

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Available Sizes:XL, XXL

ON SALE:

$35.97 (40% off)

Patagonia Active Classic Boxer - Men's

Stuff your carry-on with a couple pairs of Patagonia Men's Active Classic Boxers, and you're ready for a trip anywhere.

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Available Sizes:S, XL

ON SALE:

$20.80 (35% off)

Marmot Midweight Zip Neck Top - Long-Sleeve - Men's

The Marmot Men's Midweight Zip long sleeve shirt covers you in a shaped fit that's easy to layer without accumulating bulk, and the half neck zip dumps heat when the temps rise.

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Available Sizes:S

ON SALE:

$34.99 (30% off)

Icebreaker BodyFit260 Crew - Long-Sleeve - Men's

The Icebreaker Men's 2-Tone Long-Sleeve BodyFit260 Crew offers some much-needed style in base layer fashion, not to mention it's made of 100% Merino, the best natural fiber for temperature regulation in the world.

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Available Sizes:XXL

ON SALE:

$39.98 (50% off)

The Levitation Project NBLP Lightweight Pro Short - Men's

If you disbelieve that recycled water bottles and burned coconut fiber can keep you comfortable, dry, and un-funky, you must grace your loins with the NBLP Lightweight Pro Short from the Levitation Project.

Available Sizes:S, M, L, XL, XXL

ON SALE:

$18.36 (60% off)

DC Otish Bottom - Men's

There are two really cool things about the DC Otish Bottoms. First, they fit like sweatpants. Second, they’re made from 100% Merino wool.

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Available Sizes:S, M, L, XL, XXL

ON SALE:

$47.97 (40% off)

DC Garvie Crew - Long-Sleeve - Men's

If Marcus Garvey was still kicking it, he’d probably wear the DC Men’s Garvie Long-Sleeve Crew under his three-piece suit. This merino wool base layer keeps you warm, breathable, and odorless while you shred.

Available Sizes:S, M, XL

ON SALE:

$39.98 (50% off)

Volcom Under Shirt Crew - Short-Sleeve - Men's

Put on the Volcom Men's Under Crew T-Shirt first, and the fuzzy bunny suit second.

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Available Sizes:S, M, L, XL, XXL

ON SALE:

$8.98 (50% off)

Terramar Sonic X Pant - Men's

You won’t be able to run like a hopped up hedgehog, but the Terramar Men’s Sonic X Pant will fend off funk and wick moisture like a video game hero.

Available Sizes:S, M, L, XL, XXL

ON SALE:

$28.57 (35% off)

Burton Lightweight Bottom - Men's

Drag yourself out of bed and into the Burton Men’s Lightweight Bottom. The feeling of smooth polyester next to your skin prepares your senses for an early morning on the mountain.

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Available Sizes:XL

ON SALE:

$17.97 (40% off)

DAKINE Factor 1/4 Zip Top - Long-Sleeve - Men's

Zip up the DAKINE Men’s Factor 1/4 Zip Long-Sleeve Top before you head out for a day on the mountain. This warm Microfleece base layer keeps you toasty, dry, and odor free.

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Available Sizes:S, XL

ON SALE:

$21.98 (60% off)

Driza-Bone 3/4 Lightweight Legging - Men's

Your ski underwear can get pretty stinky—especially when you have a weeklong, no-laundry ski vacation. The Driza-Bone ¾ Leggings, however, won’t get stinky at all.

Available Sizes:L, XL, XXL

ON SALE:

$34.99 - $48.99 (50% off)

DAKINE Apex Crew Top - Long-Sleeve - Men's

When you wear the DAKINE Apex Long-Sleeve Crew Top your base layer is as stylin’ as your outerwear.

Available Sizes:S, XL

ON SALE:

$18.48 - $25.99 (50% off)

SmartWool Microweight Zip T-Shirt - Long-Sleeve - Men's

Wear the SmartWool Men's Microweight Zip-T for stop-and-go aerobic activities or as a warm base layer.

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Available Sizes:XL

ON SALE:

$34.98 (50% off)

SmartWool Lightweight Bottom - Men's

Wear the SmartWool Men's Lightweight Bottom for cool-weather aerobic activities or as a next-to-skin base layer.

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Available Sizes:XL

ON SALE:

$58.46 (10% off)

Burton Midweight Pant - Men's

Don’t head up the lifts without the Burton Men's Midweight Pants on your ass. You count on your shells to keep you dry from outside elements, but these puppies keep you dry from the inside.

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Available Sizes:L, XL

ON SALE:

$17.48 (50% off)

Spyder Stash Recycled T-Neck Fleece Pullover - Men's

Pull on the Spyder Men’s Recycled T-Neck Fleece Pullover, and head out to your favorite secret powder run or backcountry campsite.

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Available Sizes:S, M, L, XL, XXL

ON SALE:

$39.98 (60% off)

Sierra Designs Ice Ray 1/4 Zip Top - Men's

With the style of your favorite sweater and the performance of your go-to fleece, the Sierra Designs Men’s Ice Ray ¼ Zip Top cuts the chill on any casual or backcountry outing.

Available Sizes:L, XL, XXL

ON SALE:

$31.49 (30% off)

Sugoi Wallaroo 210 Zip Top - Long-Sleeve - Men's

Cozy merino wool makes the Sugoi Men’s Wallaroo 210 Long-Sleeve Zip Top a base layer to wear for many a bike ride to come.

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Available Sizes:M, XL

ON SALE:

$49.98 (50% off)

Terramar Sonic X Half-Zip Top - Men's

The Terramar Men’s Sonic X Half Zip Top fends off funk with Silver X odor technology so you can stay out on the trail longer without offending those you pass.

Available Sizes:S, M, XL, XXL

ON SALE:

$42.22 (35% off)

Patagonia Wool 2 T-Shirt - Short-Sleeve - Men's

From deep, cold ski days to sun-baked summer afternoons at the crags, the Patagonia Men’s Wool 2 T-Shirt wicks mad moisture and dries in a flash.

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Available Sizes:S, L, XL

ON SALE:

$32.50 (50% off)

Sugoi Midzero Zip Neck - Men's

The Sugoi Men's MidZero Zip Neck provides a tight fit and has a front zipper for optimal ventilation.

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Available Sizes:S, M

ON SALE:

$34.98 - $34.99 (50% off)

Oakley Enclosed Bottom - Men's

We have no idea why Oakley called this base layer pant the Enclosed Bottom when you’re supposed to wear it outside, but whatever. It works.

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Available Sizes:XL

ON SALE:

$20.00 (50% off)

Columbia Omni-Dry Tough Soft Half-Zip Shirt - Long-Sleeve - Men's

From summer backpacking trips to cold days on the mountain, the Columbia Men’s Omni-Dry Tough Soft Half-Zip Long-Sleeve Shirt breathes moisture while retaining body heat to keep your time outdoors enjoyable.

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Available Sizes:S, XL, XXL

ON SALE:

$29.22 (35% off)

Stoic Merino Crew Shirt - Long-Sleeve - Men's

Forget your fears about itchy wool—the Stoic Merino Crew Shirt is a whole different beast. Employing 17.5-micron Merino wool from New Zealand, the Merino Crew Shirt ensures comfortable, dry days whether you're out for a mid-January dawn patrol or an autumn ride down the single track.

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Available Sizes:M, L

Price:

$59.00

Icebreaker BodyFit 150 Atlas Top - Long-Sleeve - Men's

Wear the Icebreaker Men's BodyFit150 Atlas T-Shirt for traveling the globe, going for a hike, or hitting up the local climbing gym for a quick bouldering session. This slim-fit, merino wool tee regulates your temperature and wicks sweat.

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Available Sizes:S, L, XL

ON SALE:

$41.97 (30% off)

Terramar Sonic X Mock Neck Top - Men's

The Terramar Men’s Sonic X Mock Neck Top fends off funk with Silver X odor technology so you can stay out on the trail longer without offending those you pass.

Available Sizes:S, M

ON SALE:

$42.22 (35% off)

Cloudveil Run Don't Walk Boxer - Men's

Cloudveil made the Men's Run Don't Walk Boxers out of Polartec Power Stretch fleece, to keep your ass(ets) warm when you're sprinting snowy laps around the lodge.

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Available Sizes:L, XL

ON SALE:

$53.96 (10% off)

Spyder First Place Dry W.E.B. Midweight T-Neck

A gusseted zipper collar on the Spyder Men's First Place Dry W.E.B. Midweight T-Neck keeps your body heat in on frigid winter days.

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Available Sizes:S, XL, XXL

ON SALE:

$33.98 (60% off)

Ex Officio Give-N-Go Cabana Boy Boxer - Men's

The anti-microbial ExOfficio Men’s Give-N-Go Cabana Boy Boxer keeps the boys comfy and fresh throughout an entire day of pool cleaning, sugar-momma recruiting, or just hanging out.

Available Sizes:S, XL

ON SALE:

$17.97 (40% off)

Sherpa Adventure Gear Baans Tech 1/4 Zip Top - Long-Sleeve - Men's

Sherpa Adventure Gear added bamboo charcoal to the Men's Baans Tech ¼-Zip Top because it wicks sweat quickly, and it's an antimicrobial.

Available Sizes:S, L, XL

Price:

$48.95

Arc'teryx Rho AR Boot-Cut Bottom - Men's

Reduce extra fabric on your next skiing, snowboarding, or winter climbing trip with the Arc'teryx Men's Boot Cut Rho AR Bottoms.

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Available Sizes:XL, XXL

ON SALE:

$47.48 (50% off)

Arc'teryx Rho AR Bottom - Men's

The Men's Arc'teryx Rho Bottom has a tough exterior and soft interior to provide comfort in the mountains without sacrificing durability.

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Available Sizes:XXL

ON SALE:

$49.48 (50% off)

Driza-Bone Stripe 1/2-Zip Top - Long-Sleeve - Men's

Driza-bone’s merino wool Stripe ½-Zip Top fends off funk, challenges chafe, and manages moisture better than any other base layer material on the block.

Available Sizes:S, L, XL

ON SALE:

$59.99 - $83.99 (50% off)

Columbia Omni-Dry Mountain Tech Thermal - Men's

The Columbia Omni-Dry Mountain Tech Thermal Shirt wicks moisture away from your skin so it can quickly evaporate, keeping you warm and comfortable. This anti-microbial Columbia base/mid layer prevents stink and insulates underneath shell for optimal warmth.

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Available Sizes:S, M, XL

ON SALE:

$23.98 (60% off)

SmartWool Microweight Crew - Long-Sleeve - Men's

Wear the SmartWool Men's Microweight Long-Sleeve Crew Shirt for cool- or warm-weather aerobic activities or as a next-to-skin base layer.

Available Sizes:S

Price:

$59.95

The North Face XTC Lightweight Boxer - Men's

Tech out your underwear drawer with The North Face XTC Lightweight Boxer. These silky boxers feature bamboo carbon-infused fabric for increased moisture transport and odor resistance.

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Available Sizes:XXL

ON SALE:

$17.97 (40% off)

Results 1 to 40 of 92

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