Mens Baselayers

We've updated our Men's Merino 250 Base Layer Bottom to bring you a better fitting, more functional tight. The technical benefits of 100% Merino wo...

Our Merino 150 Base Layer Bottoms work hard year-round to keep you comfortable everywhere from the slopes to your campsite. Our ultra-smooth Merino...

Spring skiing or summer camping? The year-round Merino 150 base layer long sleeve is game for either thanks to the body temp regulating and no-stin...

We've updated the fit of our Men's Merino 250 Base Layer 1/4 Zip to improve functionality while also enhancing aesthetics. As one of our heaviest b...

Meet the better-than-ever Men's Merino 250 Base Layer Crew. We've updated this 100% Merino wool fan-favorite with new colors and a new fit to impro...

The most versatile polyester baselayer with the greatest comfort range. Who needs coffee for a wake-up jolt when you’re facing the first pitch of ...

Formfitting, lightweight, quick-drying boxer briefs underwear made of a recycled polyester double-knit rib for softness and stretch. You'll enco...

Our most versatile baselayer: warm, breathable, quick-drying and with HeiQ® Fresh durable odor control for daily use. The Capilene® Midweight Botto...

High-exertion workouts and high temps don’t always play nice together, unless you’re rocking a piece from the Echo Collection. Built with UPF sun p...

Polarmax Men's Mountain Skins Tight. Technical face combines with a thick fleece on the inside for great fit, performance and comfortably warm. ...

Polarmax Mens Mountain Skins Zip Top. Simply our best high performance base layer --- 90% acclimate dry polyester and 10% spandex. Technical fac...

The Quattro Fleece Men's Crew in Black collection consists of the highest quality fabric in Acclimate® Dry performance fleece using a brushed micro...

The Quattro Fleece Men's Tight in Black collection consists of the highest quality fabric in Acclimate® Dry performance fleece using a brushed micr...

The Quattro Fleece Men's Zip Mock in Black collection consists of the highest quality fabric in Acclimate® Dry performance fleece using a brushed m...

PolarMax Double Layer Crew Mens. Pulls sweat away from your body. Dries faster than other base layers. Keeps you drier and more comfortable. Wear ...

Ideal for cool conditions. Pulls sweat away from your body. Dries faster than other base layers. Keeps you drier and more comfortable. Use in activ...

Pulls sweat away from your body. Dries faster than other base layers. Keeps you drier and more comfortable. Wear alone in cool weather. Wear as a b...

Athletic fit. No bulk Bottoms. Stretches for comfort. 100% Acclimate® Dry Moisture Wicking. Quick drying. Breathes. Scent Prevent Anti-...

Polarmax All Year Gear offers casual base layers for everyday wear. Enjoy a relaxed fit, comfort strech, dry moisture wicking with comfortable flat...

Our best-selling active baselayer bottoms made with our ultra-comfortable 100% merino jersey fabric and an updated design for improved comfort, the...

An ultra-light merino T-shirt for warm-weather conditions, the Sphere Short Sleeve Crewe features an updated design to provide maximum comfort whet...

Our 100% merino, 200gm Everyday Bodyfit™ tops layer effortlessly under any mid and outer layers for the ultimate cool weather adventures. With seam...

Designed to be worn solo or as a highly insulating base layer, the highly versatile short sleeve Oasis Crewe is made from Bodyfit 200 merino fabr...

A midweight version of our best-selling Oasis that’s ideal for skiing, hiking in cold conditions, and everyday winter layering, the Tech Top Long S...