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.

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.

Icebreaker BodyFit260 Tech Top - Long-Sleeve - Men's

The Icebreaker Men's BodyFit260 Tech Top features super high quality New Zealand merino wool.

Outdoor Research Sequence Zip T Pullover - Men's

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

Patagonia Capilene 2 Crew - Long-Sleeve - Men's

Wear the lightweight Patagonia Men's Capilene 2 Crew top alone or as a base layer when you hike, backpack, or cross country ski. Patagonia made this crew top with an open knit for maximum breathability and wicking.

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

Pull on the lightweight Patagonia Men's Capilene 2 Zip-Neck shirt when you trail run, backpack, or cross country ski. Because Patagonia made this zip-neck top with a basketweave knit, it is insulating yet extremely breathable.

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

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

Mountain Hardwear Power Stretch Zip T - Long-Sleeve - Men's

From trail runs to weekend backpacking trips to mountaineering expeditions, the Mountain Hardwear Men’s Power Stretch Zip T will rule your layering system.

SmartWool Midweight 1/4-Zip Top - Long-Sleeve - Men's

When you head out for an epic powder day, three-pitch ice climb, or a backcountry snowshoe tour, the Smartwool Men’s Midweight ¼-Zip Top is the perfect way to start your layering.

Mountain Hardwear Continuum Midweight Zip T - Men's

Pull on the Mountain Hardwear Men’s Continuum Midweight Zip T when you head out on your alpine trek. The Continuum Midweight fits under your shell for extra warmth, and wicks moisture when you’re running hot.

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.

Mountain Hardwear Continuum Midweight Crew - Men's

Slip on the Mountain Hardwear Men’s Continuum Midweight Crew for your next alpine adventure. The Continuum Midweight fits comfortably under your shell and sports a seamless construction to prevent chafing.

Under Armour Coldgear Crew Midweight Long Underwear Top - Men's

The Under Armour Men's Coldgear Midweight Long Underwear Top traps warmth and provides you with a compression fit to reduce fatigue and keep you dry and comfy.

DAKINE Throttle Crew Long Underwear Top - Men's

From the rec room to the mountain, the DAKINE Men’s Throttle Crew Long Underwear Top keeps you warm and funk free.

DAKINE Havoc Crew Long Underwear Top - Men's

Start your layering off with the DAKINE Havoc Crew Men’s Long Underwear Top.

Norrøna Trollveggen Warm1 1/4-Zip Stretch Top - Men's

When you’re on a technical climb, you want your base layer to keep your muscles warm without restricting your reach. Welcome to the Norrøna Trollveggen Warm1 ¼-Zip Stretch Top.

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

Wear the slim-fit Icebreaker Men's BodyFit260 Altitude Zip Midweight Top as a base layer for extreme high-altitude adventures. Merino wool fabric possesses insulating properties that synthetics just can't touch.

Helly Hansen Freeze 1/2-Zip Top - Men's

Helly Hansen's Freeze Half Zip Turtle baselayer top combines supersoft Merino Prowool and hollow T3 polypropylene for ultimate warmth and legendary LIFA moisture management.

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

Don’t let your neck take on the brunt of winter when you ski; the Icebreaker Men’s BodyFit260 Slalom Top has a high zipped collar that you can wear up when the snow is falling sideways.

Mammut All-Year Zip Shirt - Men's

The thoughtfully designed Mammut Men’s All-Year Zip Shirt gives you body-mapped wicking performance for any outdoor pursuit.

Mammut Warm Quality Zip Top - Men's

For cold, unforgiving trips into alpine terrain, the Mammut Men’s Warm Quality Zip Top wicks moisture and insulates to keep you comfortable.

Patagonia Merino 2 Crew - Men's

Designed for everything from ski touring to trail running, the Patagonia Men’s Merino 2 Crew fights odors, wicks moisture, and dries in a snap thanks to a functional blend of merino wool and recycled polyester.

Helly Hansen Multi 1/2-Zip Top - Men's

If you're a man of all seasons, a paragon of plenitude, even a renaissance man, then you are the prototype athlete for the Helly Hansen Men's Multi 1/2-Zip Top.

Quiksilver Liny 1st Layer Top - Men's

Stay cozy with the Quicksilver Men’s Liny 1st Layer Top, cause when your friends are shivering on the lift you just want to laugh at them.

Ibex Zepher Sport Top - Long-Sleeve - Men's

If there's a performance shirt more versatile than the Ibex Men's Zepher Sport Top, we challenge you to find it.

GoLite Drimove BL-2 1/4 Zip Top - Long-Sleeve - Men's

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.

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.

Patagonia Wool 1 T-Shirt - Short-Sleeve - Men's

Keep your core from overheating with the Patagonia Men’s Wool 1 T-shirt. Patagonia built this merino wool and polyester blend tee to ride comfortably when you’re working hard.

Patagonia Wool 2 Zip Neck Top - 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.

The North Face XTC Midweight 1/4-Zip Pullover - Men's

Wear The North Face Men’s XTC Midweight ¼-Zip Pullover alone or under a shell during any of your cold-weather backcountry forays. This base layer features The North Face’s bamboo carbon technology.

Burton Bm Tech Polo Top - Men's

The Burton Men’s Bm Tech Polo Top blends the on snow performance of a synthetic base layer with the swanky style of a cotton collar.

Ibex Zepher II Top - Long-Sleeve - Men's

Don’t let winter stop you from doing what you love—throw on the Ibex Men’s Zepher Long-Sleeve Crew and keep getting out there.

Icebreaker BodyFit260 Altitude Crew - Long-Sleeve - Men's

Go higher while wearing the Icebreaker Men's Altitude Crewe Midweight Long Underwear Top. This lightweight base layer features a slim fit and all the advantages of merino wool.

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.

Arc'teryx Delta LT Zip Pullover - Men's

The Arc'teryx Delta LT Zip Pullover features an excellent warmth to weight ratio, making it a perfect mid-winter touring mid-layer.

686 Tactic Riding Jersey - Long Sleeve - Men's

The 686 Men's Long-Sleeve Tactic Riding Jersey has a polo collar that juices your style, whether you're dropping dank moves in the park or explaining that smell to the cops.