Men's Top Fleece & Base Layers

Mountain Hardwear MicroChill Zip-T - Constructed of soft and durable Polartec 100 fleece, the Men's MicroChill Zip T from Mountain Hardwear will be a do everything mid-layer. Whether worn in place of a sweater or put on over long underwear when hitting the slopes, the MicroChill Zip top will provide the perfect amounta of insulation without weighing you down. If you are beginning to work up a sweat, simply unzip the deep front zipper and allow your body to breathe.

Arc'teryx Delta AR Zip - Trim, warm, and fly enough to wear into town. Layer the Arc’teryx Men’s Delta AR Zip Neck Shirt over a baselayer, under a vest, under a jacket, or just wear it on its own. A high-loft fleece inner face provides exceptional insulation, and a smooth grid outer face slides smoothly under a shell jacket. This shirt packs down so small, you almost need a magnifying glass to find it in your pack.

Patagonia Capilene 3 Zip-Neck Top - The Men's Capilene 3 Midweight Zip-Neck by Patagonia is a fundamental - to be worn for weeks on alpine routes, washed in glacial streams and dried in the slipstream of a bus window. Patagonia's new Capilene 3 Midweight provides excellent insulation and ultimate comfort next to the skin. The most versatile and fastest wicking of their performance baselayers, its new fabric offers even better stretch, durability, wicking and breathability, and has faster dry times.

Patagonia Micro D 1/4-Zip - The Men's Micro D 1/4-Zip by Patagonia is a lightweight, warm and fast-drying 1/4-zip microfleece works as either insulation or outer layer. It's hard to find time to throw your Micro D in the wash when it's in constant use. Uber soft and lightweight, this pullover has a fast-wicking, 4.7-oz polyester microdenier fabric that's comfortable, supple and exceptionally breathable. Made from 85% recycled fleece, it's the perfect weight to wear alone on a shady crag or layer under a shell when the storm clouds roll overhead.

Arc'teryx Phase SV Zip Neck - Arcteryx Phase SV Zip Neck - Men's: Ideal for cold days in the alpine, this super-wicking base layer has mid-level insulation to keep you warm and dry, and a zip neck allows fast venting. Engineered for superior moisture management and rapid dry-times during stop-and-go activities, this form-fitting top keeps the user drier and more comfortable. Encapsulated silver-ion fibres provide durable and long-lasting odour control. Technical Features. Moisture-wicking. Breathable. Durable.

Arc'teryx Phase AR Zip Neck - The Men's Phase AR Zip Neck by Arcteryx. This lightly insulated zip neck base layer is engineered for optimal moisture management during stop-and-go activities. During active phases moisture is wicked across the entire garment, aiding temperature regulation. Entering a rest phase, the broadly dispersed moisture evaporates quickly, speeding dry-time to keep the user warmer and more comfortable. Encapsulated silver-ions provide durable and long-lasting odour control. We are not able to ship Arcteryx products outside the US because of that other thing.

Patagonia Capilene 2 Lightweight Zip-Neck - Capilene® 2 Lightweight, Patagonia's fastest-drying performance baselayer, keeps you dry during endurance activities and insulates when skies turn dark. The Patagonia Capilene® 2 Lightweight Zip-Neck's open knit invites airflow and provides excellent wicking and exceptional breathability for warm-weather endurance pursuits. Details include a deep zipper to vent the full-coverage neck, raglan sleeves that won't chafe under pack straps, and side seams that roll forward for smooth layering. Made with 4-oz 100% polyester (54% recycled) with Gladiodor® odor control for the garment.

Arc'teryx Phase AR Zip-Neck Top - The men's Phase AR Zip-Neck Top from Arc'teryx is a lightly insulated base layer engineered for optimal moisture management during stop and go activities. During active phases the men's Phase Zip-Neck Top moves moisture and wicks across the entire garment with the help of Phasic™ AR and SL fabrics, aiding in temperature regulation. Entering the rest phase the Arc'teryx Phase AR Zip-Top broadly disperses moisture so it evaporates quickly, speeding fabric dry time in order to keep the user warm and comfortable.

Arc'teryx Rho AR Zip Neck - Keep cold weather on its toes with the Arc’teryx Rho Ar Zip Neck. This crafty double-agent lays down the law as a cozy base layer or can be deployed as an intense mid layer when temperatures plummet. Endowed with Polartec Power Stretch fabric that flows with your natural movements for maximum efficiency and comfort, this half zip demolishes the chills. Wick away moisture and crank up the heat without bringing the bulk with this lightweight top.

Patagonia Capilene 2 Lightweight T-Shirt - The Men's Capilene 2 Lightweight T-Shirt by Patagonia is made for the highly motivated sweatfests of fall trail runs, early season singletrack and long, sweeping Yosemite leads, Capilene 2 Lightweight's open knit invites airflow and provides excellent wicking, exceptional breathability and fast dry times. When worn beneath layers, it's also insulative enough for chilly days. The rib-knit collar is pliable and soft, raglan sleeves have offset seams that won't chafe beneath pack straps, and side seams roll forward for smooth layering.

Mammut Zip Longsleeve All-Year Baselayer - The thoughtfully designed Mammut Men’s All-Year Zip Shirt gives you body-mapped wicking performance for any outdoor pursuit. Three different fabrics made from soft merino wool and polyester microfiber control moisture in any climate, and an antimicrobial finish keep the funk at bay during multi-day use. 100% polyester microfiber for efficient wickingZip with zip-store for comfortContoured cutAntimicrobial feature to avoid unpleasant odorThe extended back protects sensitive areas from chillsUncompromising combination of top high-end functionality and youthful design.

Patagonia Capilene 1 Silkweight Stretch T-Shirt - The Men's Capilene 1 Silkweight Stretch T-Shirt is Patagonia's stretchiest synthetic baselayer provides superior flexibility, comfort, moisture-management and 50+ UPF sun protection. The rise and fall of trail runs across redrock keeps your body seeking a balance point. Find your equilibrium in Patagonia's stretchiest baselayer, constructed to keep you dry and moving freely during active pursuits. This quick-wicking, quick-drying tee is made with an 84% polyester/16% spandex fabric that provides 50+ UPF sun protection and has Gladiodor odor control for the garment.

Patagonia Capilene 2 Lightweight Crew - The Men's Capilene 2 Lightweight Crew is Patagonia's most breathable synthetic baselayer keeps you dry and comfortable. Grab this top when your trail runs include a high pass or doubtful weather. It has the fastest dry time of all Patagonia's performance baselayer fabrics, with an open-knit construction that breathes and wicks to keep you dry and cool. You can wear Capilene 2 Lightweight on its own in warm weather or as insulation beneath layers.

Patagonia Capilene 3 Midweight Pants - Unless your legs look like Saquatch's and can retain heat better than the Sun, you'll need some sort of baselayer to keep you warm on the mountain. May we suggest the Patagonia Capilene® 3 Midweight bottoms? The Capilene® 3 Midweight and Polartec® combine to give you a superior level of warmth and heat retention, so you'll never have to cut your day short because your legs are to cold.

Arc'teryx Phase SL LS Crew - We'd be remiss if we didn't warn you that wearing the Arc'teryx Phase SL Crew Long-Sleeve Shirt. can be addictive. It's so lightweight and so good at wicking moisture, you'll find yourself pulling it out of the drawer before every winter run, skate ski, or backcountry trek; it also serves on your cool-weather bike rides and high-altitude summer hikes. In fact, you may need more than one if you don't want to wear out your poor washing machine.

Icebreaker Contour Crewe Top - The Men's Bodyfit 200 Contour Crewe Top by Icebreaker isn't called the contour for nothing. This top hugs your body perfectly around the contours, leaving wind nowhere to go. With flat seams and a seamless underarm you'll feel nothing but warm. Fits close to the bodyFlatlock stitchingIcebreaker tonal embroidered logoForward side seamsRaglan SleevesCrewe neckNon itchy, odor resistant and fast dryingGussets for ease of movement.

Patagonia Capilene 1 Silkweight Crew - The Men's Capilene 1 Silkweight Crew is Patagonia's lightest synthetic baselayer keeps you dry and cool and has 15-UPF sun protection. Run in it, swim in it, layer it with a lightweight shell, live in it. Worn alone, this top provides sun protection and a cool, drying airflow. Paired with another layer, it wicks moisture and adds warmth when temperatures drop. Made with Patagonia's lightest-weight Capilene performance baselayer fabric, it breathes and dries in a flash.

Icebreaker Bodyfit 260 LS Crewe - Merino knows what will make you comfortable: the Icebreaker 2-Tone Long-Sleeve Crew. 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. Merino has some incredible advantages over synthetic fabrics: it keeps its heat-retaining properties when wet, prevents body odor build-up better than any chemical treatment, offers expedition-weight warmth at half the bulk, and rivals many synthetics in breathability.

Marmot Power Stretch Half-Zip - Where can you get 3 times the use out of a jacket? With the men's Power Stretch Half-Zip Jacket from Marmot. The Power Stretch Half Zip Jacket can be worn as a base layer to wick away moisture from your body, as a mid layer to add another layer of warmth, or as an outer-layer fleece jacket with exceptional breathability. The Power Stretch Half Zip Jacket is lightweight, breathable and a 4-way stretch provides amazing freedom of movement.

SmartWool Microweight Tee - A crew neckline and jersey knit fit make Smartwool's Microweight Tee a perfect base or stand-alone layer for everything from biking to hiking. Microweight is perfect as a next-to-skin apparel for high performance activities in the warmest weather. Because Smartwool fibers wick moisture away while it's still in a vapor state, Smartwool keeps you dry, comfortable, and odor free. Smartwool has a natural crimp that traps thousands of tiny little air pockets that act like insulation for your body.

The North Face Flux Power Stretch 1/4 Zip - Fluxible fleece. Slip into something a little more comfortable with The North Face’s Flux Power Stretch ¼-Zip Fleece Pullover. The recipe for this fleece pullover includes a heavy dose of the highly versatile Polartec Power Stretch fabric, which provides stretch, breathability, and warmth with minimal weight. The fleece’s exterior is durable, rugged, and wind resistant, while the interior offers the classically soft and comfortable feel of fleece fuzz.

Icebreaker LS Pursuit Zip - The Icebreaker Men's Pursuit Long Sleeve Zip. Could this be the perfect technical base layer? The new Pursuit Zip is the perfect fusion of nature and technology: the softness, breathability and fast dry time of premium merino, combined with the enhanced fit of Lycra. In the Pursuit Zip, your next workout may just be the best you've ever had. Zip-neck collar with draft flap for warmth and comfort against the skinMerino wool regulates temperature to keep you comfortableContrast flatlock stitching for nonchafing comfort and a smooth fitPure New Zealand merino wool with stretch Lycra for a high performance athletic fit and faster dry timeHighly breathable...

Patagonia Merino 3 MW Zip-Neck Top - You can work up a sweat, but you don't have to soak in it. You're going to work up a sweat snowshoeing in the Appalachians, so make sure and wear the Patagonia Merino 3 MW Zip-neck. The wicking, moisture-managing fabric keeps your skin dry and warm so you don't feel cold and clammy. Plus, merino wool naturally inhibits odor so this base layer won't get funky after a day on the trail.

Icebreaker LS Crewe - The Long Sleeved Crewe Shirt by Icebreaker is an outstanding fabric that is the warmest and most breathable performance base layer in the world. For cold to very cold conditions, ideal for all winter High performance temperature and moisture regulation for extreme environments. The Long Sleeve Crewe is a perfect layering piece. All Rock/Creek staff stands behind the quality of Icebreaker. Long underwear second to none. Close-to-body fit150gm merino with a touch of lycra for ultimate fitLow bulk - great for layeringHighly breathable merino wool transports moisture vapor away from the skin—never feels clammyNo-chafe flatlock stitching/ forward side seamsIcebreaker tonal embroidered logo and pip labelSoft, breathable,...