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Men's Lightweight Long Underwear - Tops

October Technical Gear - The North Face, Black Diamond, Burton, K2, Arcteryx, Mountain Hardwear
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The North Face XTC Lightweight 1/4 Zip Top - Men's

The North Face XTC Lightweight 1/4 Zip Top - Men's

Slip on The North Face XTC Lightweight ¼ Zip shirt before a fall trail run, or use it as your base layer in the winter. Either way, this performance shirt's bamboo charcoal technology wicks moisture, fights odor, and provides UPF 50+ sun protection.

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Available Sizes:S, M, L, XL, XXL
Price:
$41.95
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Icebreaker Atlas Bodyfit 150 Top - Men's

Icebreaker Atlas Bodyfit 150 Top - Men's

Don't let the weight of the world get you down—pull on your slim-fitting Icebreaker Men's BodyFit150 Atlas Short-Sleeve T-Shirt and go trail running or rock climbing.

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Available Sizes:S, M, L, XL, XXL
Price:
$44.95
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Icebreaker BodyFit150 Atlas Top - Men's

Icebreaker BodyFit150 Atlas Top - 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, M, L, XL, XXL
ON SALE:
$59.95 (42% off)
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Arc'teryx Rho SL Crew Neck Shirt - Long-Sleeve - Men's

Arc'teryx Rho SL Crew Neck Shirt - Long-Sleeve - Men's

Arc'Teryx made the Rho SL Long-Sleeve Crewneck Shirt to be a versatile and lightweight shirt that works by itself in warm weather or as a baselayer in colder conditions.

Available Sizes:M, L, XL, XXL
Price:
$64.95
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SmartWool Lightweight Zip T-Shirt - Long-Sleeve - Men's

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

Wear the SmartWool Men's Lightweight Zip-T long-sleeve shirt for cool-weather aerobic activities or as a next-to-skin base layer.

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Available Sizes:S, M, L, XL, XXL
Price:
$74.95
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Marmot Lightweight Zip Neck Shirt - Long-Sleeve - Men's

Marmot Lightweight Zip Neck Shirt - Long-Sleeve - Men's

Layer with the moisture-wicking Marmot Men's Lightweight Long-Sleeve Zip Neck shirt on chilly days and bust open the neck zipper when you need to dump some serious heat.

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Available Sizes:S, M, L, XL
Price:
$41.95
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SmartWool Microweight Zip T-Shirt - Long-Sleeve - Men's

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

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

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Available Sizes:S, M, L, XL, XXL
Price:
$69.95
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Under Armour Base 1.0 Crew Top - Long-Sleeve - Men's

Under Armour Base 1.0 Crew Top - Long-Sleeve - Men's

Pull on the Under Armour Men's fitted Base 1.0 Crew Long Underwear Top for early spring runs.

Available Sizes:S, M, L, XL, XXL
Price:
$39.95
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Backcountry.com Merino Zip Tee - Long-Sleeve - Men's

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:L, XL
Price:
$69.95
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DAKINE Apex Crew Top - Long-Sleeve - Men's

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, M, L, XL
Price:
$36.95
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DAKINE Badlands V-Neck Top - Long-Sleeve - Men's

DAKINE Badlands V-Neck Top - Long-Sleeve - Men's

Layer the DAKINE Men’s Badlands V-Neck Long-Sleeve Top under your kit, and shred all day in comfort. This super-lightweight base layer wicks excess moisture away from your skin, and fights odors so you don’t get ignored in the tram.

Available Sizes:S, M, L, XL
Price:
$34.95
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Burton AK Silkweight Top - Men's

Burton AK Silkweight Top - Men's

The Burton Men's AK Long-Sleeve Silkweight Top is as comfortable as the silk PJs your mom got you for Christmas when you were 12. Except this baselayer wicks moisture, resists odor, provides warmth, and lacks the fluffy bunny print.

Available Sizes:S, M, L, XL
Price:
$54.95
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Helly Hansen Crew Shirt - Long-Sleeve - Men's

Helly Hansen Crew Shirt - Long-Sleeve - Men's

Wear the Helly Hansen Men's Crew Long-Sleeve T-Shirt as a base layer when you skin up a ridge for turns or alone for a trail run in cold weather.

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Available Sizes:S, M, L, XL
Price:
$35.95
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Backcountry.com Merino Crew Shirt - Long-Sleeve - Men's

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
Price:
$59.95
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Helly Hansen Charger Half Zip T-Shirt - Long-Sleeve - Men's

Helly Hansen Charger Half Zip T-Shirt - Long-Sleeve - Men's

The versatile Helly Hansen Men's Charger Half-Zip Long-Sleeve T-Shirt works alone or as a base layer for high-intensity sports year round.

Available Sizes:S, XL, XXL
Price:
$49.95
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Patagonia Capilene 1 Crew - Long-Sleeve - Men's

Patagonia Capilene 1 Crew - Long-Sleeve - Men's

The Patagonia Men's Capilene 1 Long-Sleeve Crew is an ultralight, fast-wicking top for warm-weather trail runs or hikes.

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Available Sizes:XS, S, M, L, XL, XXL
Price:
$38.00
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Icebreaker BodyFit200 Oasis Crew - Men's

Icebreaker BodyFit200 Oasis Crew - Men's

The Icebreakers Men's BodyFit200 Oasis Crew is a great all-around lightweight base layer made from the ultimate breathable insulation—Merino wool.

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Available Sizes:S, M, L, XL, XXL
Price:
$64.95
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Arc'teryx Rho LT Zip - Men's

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
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Arc'teryx Rho Lightweight Zip Top - Men's

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
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Marmot Lightweight Crew - Long-Sleeve - Men's

Marmot Lightweight Crew - Long-Sleeve - Men's

Whether used as a layering piece or worn alone, the anti-microbial Marmot Men's Lightweight Long-Sleeve Crew wicks moisture away from your skin when you work up a sweat.

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Available Sizes:S, M, L, XL, XXL
Price:
$38.95
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Ibex Woolies Crew Long-Sleeve Shirt - Men's

Ibex Woolies Crew Long-Sleeve Shirt - Men's

Layer the Ibex Men Woolies Crew Long Sleeve Shirt under other layers in the winter, or wear it by itself—either way, this form fitting shirt regulates your temperature, wicks moisture, and fights funk.

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Available Sizes:S, M, L, XL
Price:
$64.95
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The North Face XTC Lightweight Crew - Men's

The North Face XTC Lightweight Crew - Men's

Tired of your base layers restricting your movement? The North Face Men's XTC Lightweight Crew has underarm gussets for a full range of motion. This long-sleeve shirt dries quickly and resists odor.

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Available Sizes:S, M, XL, XXL
Price:
$37.95
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Ibex Woolies Half-Zip T Neck Shirt - Long-Sleeve - Men's

Ibex Woolies Half-Zip T Neck Shirt - Long-Sleeve - Men's

Zip up the Ibex Men's Woolies Zip T-Neck Top to tackle the steep and deep and then keep it on for that après ski party with friends.

Available Sizes:S, M, L, XL
Price:
$68.95
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Outdoor Research Sequence Zip Tee - Men's

Outdoor Research Sequence Zip Tee - Men's

Outdoor Research combines the technical performance of wool and polyester with the Men's Sequence Zip Tee.

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Available Sizes:S, M, L, XL, XXL
ON SALE:
$41.95 (40% off)
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SmartWool Microweight Crew Shirt - Long-Sleeve - Men's

SmartWool Microweight Crew Shirt - 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.

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Available Sizes:S, M, L, XL, XXL
ON SALE:
$47.96 (20% off)
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Mountain Hardwear Extend Featherweight Zip Tee Long-Sleeve - Men's

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:XL, XXL
ON SALE:
$34.27 (30% off)
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Sherpa Adventure Gear Baans Tech 1/4 Zip Top - Long-Sleeve - Men's

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.

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Available Sizes:S, L, XL
ON SALE:
$33.71 (25% off)
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Icebreaker BodyFit200 Mondo Zip Top - Men's

Icebreaker BodyFit200 Mondo Zip Top - Men's

The Icebreaker Men's BodyFit Mondo Zip Top—not to be confused with a turtle neck.

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Available Sizes:XL
ON SALE:
$48.97 (30% off)
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Burton Compression Crew - Long-Sleeve - Men's

Burton Compression Crew - Long-Sleeve - Men's

The close-fitting Burton Men's Long-Sleeve Compression Crew provides efficient insulation under your fleece, and it's so light you'll hardly know you're wearing it.

Available Sizes:XL
ON SALE:
$41.97 (40% off)
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I/O Biocompatibles Contact Crew Long-Sleeve T-Shirt - Men's

I/O Biocompatibles Contact Crew Long-Sleeve T-Shirt - Men's

Rub the sleep out of your eyes, pull the merino wool I/O Biocompatibles Men's Contact LS Crew Shirt over your head, and take off for an all-day big wall climb or a late breakfast with last night's party crew.

Available Sizes:S, M
Price:
$64.95
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I/O Biocompatibles Contact Ribbed Crew T-Shirt - Men's

I/O Biocompatibles Contact Ribbed Crew T-Shirt - Men's

The close-fitting I/O Biocompatibles Men's Contact Euro Ribbed T-Shirt takes pole position among your layering pieces thanks to I/O's oh-so-soft merino wool. Take this t-shirt for a run or a climb—you'll become a merino believer.

Available Sizes:XL
Price:
$59.95
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Results 1 to 31 of 31

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