Previously known as Merino 250s, the Classic Thermal Merino Base Layers are a staple of the Smartwool lineup.
Smartwool Classic Thermal Merino Base Layer Pants Black Men's
Smartwool Men's Classic Thermal Merino Base Layer Bottoms
8 Best Base Layers of 2024 (Tested and Reviewed)
Best Baselayers of 2024
Smartwool Classic Thermal Merino Base Layer Rib Hoodie - Men's - Men
Made from premium merino wool, the Smartwool Classic Thermal Merino Crew base layer top helps regulate your temperature and keep you warm while hiking
Classic Thermal Merino Crew Base Layer Top - Men's
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Smartwool Intraknit Thermal Merino Crew Base Layer Top - Women's
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Smartwool Merino 250 (Thermal) Base Layers Review – Greenbelly Meals
The Best Men's Base Layers of 2024
