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The Smartwool Men's Classic Thermal Merino Base Layer Bottom is Smartwool's warmest-weight merino tight, built for cold-weather skiing, running and hiking. It uses 100% merino wool in an interlock knit for warmth, moisture management and odor resistance, with flatlock seams and a merino-lined elastic waistband to cut chafing. The slim fit follows the body, and a size medium has a 30-inch inseam. Against synthetic base layers it trades quick-drying speed for softer feel, better odor control and warmth when damp.
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Owners of Smartwool's Classic Thermal merino bottoms generally praise the warmth, soft feel and odor resistance for cold-weather layering. Common complaints center on the slim fit and the slower drying and care demands of pure merino.
The Men's Classic Thermal Merino Base Layer Bottom is a slim-fit tight made from 100% Merino wool in Smartwool's warmest fabric weight. It is meant for skiing, running and hiking. The fit follows the contours of the body.
The fabric pairs Merino wool with an interlock knit. It offers moisture management, temperature regulation and odor resistance. Flatlock seams are designed to add comfort and minimize chafing.
It has a fully functional fly and a Merino-lined elastic waistband.
