Shop Smartwool Base Layer Tops 2

Women's Classic Thermal Merino Base Layer 1/4 Zip

Men's Classic Thermal Merino Base Layer 1/4 Zip

Men's Classic Thermal Merino Base Layer Pattern Crew

Women's Thermal Drape Neck Hoodie

Men's Classic Thermal Merino Base Layer Hoodie

Women's Thermal Merino Drape Neck Hoodie Plus

Women's Classic All-Season Merino Base Layer 1/4 Zip

Women's Classic Thermal Merino Base Layer 1/4 Zip Plus

Men's Intraknit Thermal Merino Base Layer Pattern Crew

Men's Classic All-Season Merino Base Layer 1/4 Zip

Women's Classic Thermal Merino Base Layer 1/4 Zip Boxed

Men's Classic All-Season Merino Base Layer 1/4 Zip Boxed

Women's Intraknit Thermal Max Merino Base Layer Pattern Hoodie

Men's Classic All-Season Plant-Based Dye Merino Base Layer Long Sleeve

Men's Intraknit Thermal Max Merino Base Layer 1/4 Zip

Women's Thermal Merino Rib Crew

Women's Classic Thermal Merino Base Layer Pattern 1/4 Zip Plus

Women's Merino 250 Plant-Based Dye Logo Hoodie

Men's Classic All-Season Merino Base Layer Long Sleeve Boxed

Men's Merino 250 Baselayer Plant-Based Dye Logo Hoodie

Women's Classic Thermal Merino Base Layer Colorblock 1/4 Zip

Women's Intraknit Thermal Max Merino Base Layer 1/4 Zippers Top

Women's Classic All-Season Merino Base Layer 1/4 Zippers Top

Men's Classic Thermal Merino Base Layer Crew

Women's Classic Thermal Merino Base Layer Crew Plus

Men's Classic All-Season Merino Base Layer Long Sleeve

Women's Intraknit Thermal Merino Base Layer 1/4 Zip

Women's Classic All-Season Merino Base Layer Long Sleeve

Men's Classic Thermal Merino Base Layer Colorblock Crew

Women's Classic All-Season Merino Base Layer Crew Plus