The men's Classic Thermal Merino Base Layer 1/4 Zip is one of Smartwool's heaviest base layer tops and a great choice for a variety of cold weather activities.
Smartwool Classic Thermal Merino Base Layer 1/4 Zip - Plus
SmartWool Classic Thermal Merino Base Layer 1/4 Zip - Men's, Merino Tops
Smartwool Classic Thermal Merino Base Layer 1/4 Zip Boxed - Merino
Smartwool - Men's Classic Thermal Merino Base Layer 1/4 Zip - Running Lab
Smartwool Men's Classic Thermal Merino Base Layer 1/4 Zip - The Painted Trout
Men's SMARTWOOL Classic Thermal Merino Base Layer 1/4 Zip Top
SMARTWOOL Men's Classic Thermal Merino Base Layer 1/4 Zip
Smartwool Men's Intraknit Thermal Merino Base Layer 1/4 Zip
Classic Thermal Merino Base Layer 1/4 Zip Women's – Feathered Friends
Smartwool Men's Classic Thermal Merino Base Layer 1/4 Zip
Smartwool Classic Thermal Merino Quarter-Zip Base Layer Top - Women's
Men's Classic Thermal Merino Base Layer 1/4 Zip
Smartwool Women's Classic Thermal Merino Base Layer 1/4 Zip
