Men's Long Underwear from Backcountry.com

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: XL

ON SALE:

$55.97 (30% off)

The North Face TKA 100 Glacier 1/4 Zip Fleece Pullover - Men's

The North Face TKA 100 Glacier ¼ zip is a soft microfleece pullover perfect for layering or just bumming around on a crisp spring day.

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

Price:

$49.95

Ex Officio Give-N-Go Brief - Men's

Wear the Ex Officio Men's Give-N-Go Brief for long flights, strenuous hikes, or anytime comfort and wicking performance are paramount.

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

Price:

$17.95

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

The Ex Officio Men's Give-N-Go Boxer will make all those cotton jobbies in your top drawer obsolete. Whether you're on vacation or out for a hike, this travel boxer wicks sweat, stretches, and fights odor for a new level of comfort and performance.

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

Price:

$24.95

Ex Officio Give-N-Go Boxer Brief - Men's

The Ex Officio Men's Give-N-Go Boxer Brief aren't your typical pair of undies. These breathable boxers air dry in a few hours, wick sweat, and fight odor.

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

Price:

$24.95

Patagonia R1 Flash Fleece Pullover - Mens

Wear the versatile Patagonia Men's R1 Flash Pullover either as a heavy base layer or lightweight insulating mid-layer when you exert in cold temps. You'll love the stretchy, wicking R1 fabric.

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Available Sizes: S, M, L, XL

Price:

$115.00

The North Face TKA 100 Pant - Men's

The North Face TKA 100 pant is a super-warm lightweight fleece pant that's perfect for layering when you know it's going to be a long, cold day.

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

Price:

$49.95

Patagonia Active Sport Briefs - Men's

Start your layering system right with the synthetic Patagonia Men's Active Sport Briefs.

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

Price:

$29.00

Arc'teryx Rho LT Zip - Men's

The Arc'teryx Men's Rho LT Zip Neck Top is an ideal foundation for backcountry travelers.

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

Price:

$98.95

Ex Officio Give-N-Go Sport Brief - Men's

The low-rise Ex Officio Men's Give-N-Go Sport Brief air-dry within a couple hours so you can wash as you go and carry fewer pairs of underwear on your next journey.

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

Price:

$17.95

The North Face Momentum Shirt - Men's

Thanks to a close-to-body performance fit, The North Face Men's Momentum Shirt layers easily under a ski jacket or fleece. This quick-drying performance shirt keeps you dry on the slopes and on the trail.

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

ON SALE:

$69.95 (30% off)

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

We made our Backcountry.com Men's 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 in complete comfort.

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Available Sizes: S, M, L, XL

Price:

$69.95

Patagonia Active Sport Boxer Brief - Men's

The Patagonia Men's Active Sport Boxer Briefs should be the first step of your layering system when you go skiing, hiking, or climbing.

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

Price:

$32.00

Mountain Hardwear Extend Featherweight Boxer - Men's

Play longer and have more fun in a pair of Mountain Hardwear Extend Featherweight Boxers.

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Available Sizes: S, M, L, XL

Price:

$27.95

Patagonia Organic Cotton Boxers - Men's

Patagonia made the Men's Organic Cotton Boxers for everyday comfort. The organic cotton feels smooth and softens over time.

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

Price:

$32.00

Patagonia Capilene 3 Crew Long-Sleeve - Men's

The Patagonia Men's Capilene 3 Long-Sleeve Crew features a dense honeycomb polyester fabric that feels soft on your skin, insulates you, and provides low-friction comfort with other layers.

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

ON SALE:

$44.00 (30% off)

Arc'teryx Rho Lightweight Zip Top - Men's

The Arc'teryx Men's Rho LTW Zip Top is a great base layer to wear for long winter days in the backcountry.

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

Price:

$98.95

The North Face XTC Midweight Crew - Men's

The North Face Men's XTC Midweight Crew works as a naturally antibacterial base layer for chilly days on the mountain.

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

Price:

$45.95

Mountain Hardwear Extend Featherweight Zip Tee Long-Sleeve - Men's

This year when you're looking down a line stacked with cliff bands, at least you'll know you're not shaking from being cold. The Mountain Hardwear Men's eXtend Featherweight Zip Tee is a lightweight and comfortable base layer made to keep you dry.

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

Price:

$48.95

The North Face Cirque Top Delta 1/4 Zip - Men's

Layer The North Face Men's Cirque Top Delta ¼-Zip Long-Sleeve Shirt under your ski jacket on wet spring days, and wear the micro-fleece Cirque pullover on its own during fall hikes.

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

ON SALE:

$55.97 (30% off)

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

The Patagonia Men's Wool 2 Zip-Neck base layer doesn't hold the sweaty smells like your old synthetic long underwear did. Plus, the versatile Wool 2 keeps you dry and comfortable when you backpack, cross country ski, rock climb, or hike.

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Available Sizes: S, M, L, XL

Price:

$80.00

Patagonia Wool 2 Crew Long-Sleeve - Men's

Roll out of bed, pull on the Patagonia Men's Wool 2 Long-Sleeve Crew, and head out for a dawn trail run or ski tour. This long-sleeve, lightweight base layer keeps you dry like a synthetic top, but it naturally resists odors and insulates even when it's wet.

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Available Sizes: S, M, L, XL

Price:

$82.00

Icebreaker LTD320 Coronet Sport Top - Long-Sleeve - Men's

Ski hard and play harder in the urban-inspired Icebreaker Men's LTD320 Coronet Top. The Sport Top's 320 merino wool keeps you warm in the pow but won't stink for the après ski party.

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

Price:

$149.95

Under Armour Boxer Short - Men's

The Under Armour Men's Boxer Short keeps you cool and comfortable at work and during your workout.

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Available Sizes: S, M, XL, XXL

Price:

$19.95

Patagonia Active Boxer Briefs - Men's

Patagonia reduces relative humidity in your shorts with the Men's Active Boxer Brief. These boxer briefs feature wicking Capilene fabric.

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Available Sizes: S, XL, XXL

Price:

$29.00

Patagonia Capilene 4 Zip Long-Sleeve - Men's

Patagonia made the wicking Men's Capilene 4 Zip-Neck base layer for stop-and-go activities in cold conditions.

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Available Sizes: S, M, L, XL

Price:

$85.00

Mountain Hardwear Extend Featherweight Tights - Men's

Prolong any outdoor activity in a pair of Mountain Hardwear Extend Featherweight Tights.

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

Price:

$44.95

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: S, M, L, XL

Price:

$59.95

Arc'teryx Rho SL Bottom - Men's

The Rho SL Bottom is a nearly weightless addition to your active wardrobe.

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

Price:

$49.95

Icebreaker BodyFit200 Legless Pant - Men's

The Icebreaker Men's BodyFit200 Legless Pant is a ¾-length merino wool pant that's designed specifically for layering with winter boots.

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

Price:

$54.95

Arc'teryx Rho LT Bottom - Men's

Start your layering from the legs up with the Arc'teryx Rho LT Bottom.

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Available Sizes: S, L, XL, XXL

Price:

$78.95

Patagonia Capilene 3 Zip-Neck Top - Long-Sleeve - Men's

The Patagonia Men's Capilene 3 Zip-Neck keeps you comfortable during aerobic activities in varying temperatures.

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

Price:

$50.00

Icebreaker BodyFit200 Boxer - Men's

Wool boxer shorts? You better believe it. The Icebreaker Men's BodyFit200 Boxer With Fly gives you all the benefits of merino wool minus the itch.

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Available Sizes: M, L, XL, XXL

Price:

$39.95

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