The PolarMax 4-Way Stretch Mock Zip Neck is a performance top packed with features! A Flatlock Seam lies flat within the garment, creating a more comfortable fit. You’ll also get a full range of motion with that touch of Spandex incorporated into the top and the Acclimate Fabric wicks away moisture, keeping you dryer, faster and longer. This easy care shirt is odor resistant and anti-microbial, leaving the 4-Way Stretch Mock Zip Neck your ultimate adventure top! Heavy Weight 4-Way Stretch XG Fa (…)

PolarMax 4-Way Stretch Mock Zip Mens Long Underwear Top 2099

PolarMax 4-Way Stretch Mock Zip Men’s Long Underwear Top 2099

Made for extreme expedition, the Polarmax Core 4.0 Mock Zip Long Underwear Top will protect your core and get you to your goals. Made from 92% Polyester and 8% Lycra, this top has unmatched stretch for unlimited mobility. The tech face front adds durability, while the fleece liner offer a next-to-skin softness to cozy up. The Core 4.0 will keep you dry, warm and comfortable, when the temperatures drop! AcclimateDry Technology, 92% Polyester and 8% Lycra, Quick Drying and Moisture Wicking, An (…)

PolarMax Core 4.0 Mock Zip Mens Long Underwear Top 2020


Men’s Smartwool Merino 250 Baselayer Crew is a tried and true layering piece that has been updated to improve functionality and aesthetics. An interlock 100% merino wool knit offers comfort, breathability, thermoregulation and odor resistance. Shoulder panels eliminate top shoulder seams while the flatrock seam construction minimizes chaffing while wearing the Merino 250 Baselayer Crew. 100% Merino Wool, Interlock Knit – Enhanced Comfort, Breathability, Thermoregulation, Odor Resistance, (…)

SmartWool Merino 250 Baselayer Crew Mens Long Underwear Top 2022


Men’s Smartwool Merino 250 Baselayer Crew is a tried and true layering piece that has been updated to improve functionality and aesthetics. An interlock 100% merino wool knit offers comfort, breathability, thermoregulation and odor resistance. Shoulder panels eliminate top shoulder seams while the flatrock seam construction minimizes chaffing while wearing the Merino 250 Baselayer Crew. 100% Merino Wool, Interlock Knit – Enhanced Comfort, Breathability, Thermoregulation, Odor Resistance, (…)

SmartWool Merino 250 Crew Mens Long Underwear Top 2022


Men’s Smartwool Intraknit Merino 200 Crew is the ultimate performance-oriented layering top. The Merino Sport yarn uses a combination of merino wool and polyester to offer powerful warmth, durability and fast dry times. The engineered construction creates a lightweight garment with clean finishes while the 3D mapping offers a custom fit and top-notch freedom of movement. The Intraknit Merino 200 Crew is finished off with gender-specific mesh ventilation throughout, rounding out a winter read (…)

SmartWool Intraknit Merino 200 Crew Mens Long Underwear Top


Men’s Smartwool Intraknit Merino 250 Thermal 1/4 Zip is everything you could wish for in a performance oriented layering piece. The 1/4 offers top-notch moisture management, insulation, thermoregulation and odor control thanks to the Merino yarn. Insulating terry loops work with mesh ventilation zones create unparalleled breathability in the Intraknit Merino 250 Thermal 1/4 Zip. 100% Merino Wool – Moisture Management, Insulation, Thermoregulation, Odor Control, Engineered Construction – (…)

SmartWool Intraknit Merino 250 Thermal 1/4 Zip Mens Long Underwear Top


The Spyder Momentum top is built to be a staple in your base layer wardrobe. It is made with Avra fabric technology and constructed to be seamless with the perfect amount of stretch to create the perfect, active fit. This fabric features top-notch wicking abilities and quick drying technology which helps to regulate your core temperature, meaning you can work hard without overheating. The Momentum Top is designed to offer high end performance so you can remain comfortable from first to last chai (…)

Spyder Momentum Mens Long Underwear Top 2022


The Spyder Momentum Mens Long Underwear Top is a high performance baselayer top. Constructed with the Avra fabric technology in a seamless, stretch construction. Avra is an ultra-thin polyester fiber that are held together by a proprietary removable polymer. The result of it all is a silky fabric that keeps you drier and more comfortable. The Spyder Momentum Top will have you operating at peak performance all day by being effective at wicking moisture, drying quickly, and regulating your core. (…)

Spyder Momentum Mens Long Underwear Top 2020