Men's Base Layers

Smartwool  Men's Intraknit Thermal Merino Base Layer 3/4 Bottom  Our Men's Intraknit™ Thermal Merino Base Layer 3/4 Bottom are the warm and winter-ready pants you need to perform all season. Our Merino Sport yarn combines the power of...

Smartwool Men's Classic All-Season Merino Base Layer 3/4 Bottom Whether you're taking on the Nordic trails or heading out for a cooler-weather hike, the Men's Classic All-Season Merino Base Layer 3/4 Bottom is perfect for year-round layering and...