Our next to skin fit that contours the body for no distractions

Body fit

Our close to body fit with a low profile silhouette for ease of movement

Slim fit

Our standard, slightly off body fit for unrestricted comfort

Regular fit

Our roomy, off body fit for maximum comfort and easy layering

Relaxed fit

key.measurement

key.waist

key.hips

key.inseam

Charcoal Heather

Deep Navy

Medium Grey Tick Stitch

Black

Black/Charcoal

Winter Moss Heather

Smartwool

<p>Merino is standard issue for next to skin insulation. It works with your body's own heating and cooling system to keep your core temperature where you want it. This heavier weight is a wonderful base layer in very cold weather. Perfect for ski touring, mountaineering and backpacking adventures and for high output snowshoeing and nordic skiing.</p><ul><li>Made of interlock knit merino wool, a fiber that wicks fast to keep you dry, and is naturally antimicrobial</li><li>Flatlock seam eliminate chafing</li><li>Wide fabric-covered elastic waistband is comfortable over long days</li><li>Updated fit for form-fitting and comfort</li></ul>

Classic Thermal Merino Base Layer Bottoms Charcoal Heather

Classic Thermal Merino Base Layer Bottoms Black

Classic Thermal Merino Base Layer Bottoms Winter Moss Heather

Smartwool Classic Thermal Merino Base Layer Bottoms - Men's

Small

Medium

Large

X-Large

XX-Large

Measured in grams per square metre (gsm). The larger the number, the heavier and thicker the garment. 

The finished inseam measurement of the garment. 

Save an extra 20% off clearance footwear, discount applied automatically in cart. Hurry while supplies last.

Extra 20% off clearance footwear

Extra 15% off select clearance footwear. Online and in-store, ends September 2

Summer savings: Get up to 50% off gear for camping, biking, climbing and more. 

We're back in Canadian hands! Check out a roundup of our fave Canadian brands.

Smartwool Classic Thermal Merino Base Layer Bottoms - Men's

Compare (0)