Shop Smartwool Base Layer Tops 2

Women's Thermal Merino Rib Crew

Men's Intraknit Thermal Merino Base Layer Pattern Crew

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

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

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

Women's Thermal Merino Drape Neck Hoodie Plus

Men's Classic Thermal Merino Base Layer Hoodie

Women's Classic Thermal Merino Base Layer 1/2 Zippers Hoodie

Men's Classic Thermal Merino Base Layer Colorblock Crew

Male Men's Classic Thermal Merino Base Layer Hoodie Boxed

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

Women's Classic Thermal Merino Base Layer Crew Plus

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

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

Men's Classic All-Season Merino Base Layer 3/4 Bottom

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

Women's Intraknit Active Base Layer Crew Top

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

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

Men's Classic Thermal Merino Base Layer Colorblock Crew

Women's Intraknit Thermal Merino Base Layer Pattern Crew Top

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

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

Men's Intraknit Active Base Layer Crew Top

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

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

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

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

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

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