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Men's Baselayers & Underwear

43 Products

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  • Thin yet effective, Columbia's midweight baselayer is perfect for skiing or cold-weather hiking. A 1/2 zipper allows for easy venting, helping you avoid the hassle of shedding an entire layer.

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  • Designed to be worn for cold weather aerobic activities, this is one of the hardest working baselayer tops on the market. Offering the Merino wool breathability, it's an ideal top for winter running or Nordic/skate skiing.

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  • Ideal for cold weather activities, the Funnel has a 1/2 zip which is longer than the 1/4 zip so it allows for even greater ventilation. Made of 100% merino wool, you're going to love the soft against skin feel.

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  • Nice and warm, the Men's HyFi full zip is going to be a new favorite for trail runs and hikes throughout the cold chilly months. Wear it as a midlayer for ski/snowboard adventures or as a standalone on those more moderate weather days on the trail.

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  • Patagonia's most breathable synthetic baselayer keeps you dry and comfortable in cool conditions.

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  • These bottoms are made with stretchy Polartec fabric that wicks moisture, dries fast, and works great as a baselayer or midlayer for alpine activities.

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  • This densely woven knit 1/4 zip pullover offers maximum warmth with minimal bulk, keeping you warm even on the coldest days. Ideal for trail runs and hiking adventures, wear it around town on chilly brisk days as a standalone.

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  • The Men's Stretch Thermal Tights are an essential baselayer for the coldest winter months. With flat-lock seams to eliminate chafe, the Thermal Tights are sure to be one of the most comfortable baselayers you own.

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  • A network of tiny chambers within its fabric spreads moisture over a greater surface area for faster evaporation and a smoother, drier feel than other wicking systems. Wick.Q EVAP makes this UPF 50 hiking/trekking shirt an elite performer.

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  • These performance all-day briefs are the perfect combination of comfort and technology, featuring ergonomically wrapped seams with slight compression for comfort and support. Wear them to ensure that you make it through hot grueling temps.

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  • Light and soft against your skin, this innovative tee protects you from the sun while dispersing heat and moisture. It also boasts Omni-Freeze technology, which reacts with sweat to lower the temperature of the material.

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  • It's no secret that plenty of guys are rocking compression shorts under their board shorts. UA went a step further and added an interface so these compression shorts will attach to your UA board shorts and won't ride up or get pulled down.

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  • A layering piece designed like a second skin. The Stretch Thermal offers lightweight warmth and unsurpassed mobility in a soft, stretchable fleece.

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  • Featuring a crew neckline and athletic fit, this tee is a perfect baselayer in cool to cold weather. Great as a stand-alone piece for warm to hot weather activities. Made from 100% Merino wool, it's super soft and wicks moisture away from the body.

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  • SL728 - Great as a baselayer in cooler conditions, or by itself when it heats up. Made from Smartwools lightest NTS fabric, this crew was designed with flatlock seam construction to eliminate chafing.

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  • Mountain Hardwear's classic wicking tee shirt is re-engineered and redesigned to provide even more comfort and wicking power.

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  • Patagonia's warmest and most breathable synthetic baselayer keeps you dry and comfortable in cold conditions - with a 1/4 zipper for ventilation. Updated for 2012, the new Capilene 4 is lighter and warmer.

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  • A must-have midlayer piece, essential for keeping your core warm in cool weather. The Men's PHD Hyfi offers you breathability with no bulk, and pulls away unwanted moisture and heat from your body.

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  • The Columbia Schuss is a perfect solution to those days when you can't decide between a traditional long sleeve and midlayer pullover. With UPF protection and water resistant properties, this is one stellar crew.

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  • The perfect cold-weather, all-day hunting baselayer. With space-age technology to keep you warm and camo colors to keep you out of sight.

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  • The Woolies 220 is an excellent form-fit, baselayer made with 100% Merino Wool; ideal for layering or wearing on its own.

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  • Made with soft, 18.5-micron 100% Merino Wool, the Indie is great as a midweight baselayer or midlayer.

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  • Made with soft, 18.5-micron 100% Merino Wool, the Indie is great as a midweight baselayer or midlayer for those cold winter adventures. With a cool dapper stripe, surely you can wear it out with friends!

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  • Ibex's warmest Merino Wool baselayer is suitable for the coldest of temperatures when you're off in the midst of your winter adventures. Soft, comfortable, and naturally odor-resistant, the Zepher Turtle Neck is a a winter must-have.

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