Shop Smartwool Base Layer Clothing

Men's Classic Thermal Merino Base Layer Crew

Men's Classic All-Season Merino Base Layer Bottom

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

Women's Classic Thermal Merino Base Layer Crew Top

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

Men's Classic Thermal Merino Base Layer Crew Top

Women's Classic Thermal Merino Base Layer Bottom

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

Men's Classic Thermal Merino Base Layer 1/4 Zippers Top

Women's Everyday Merino Bikini

Men's Classic Thermal Merino Base Layer Bottom

Women's Classic All-Season Merino Base Layer Bottom

Men's Intraknit Thermal Merino Base Layer Bottom

Men's Classic Thermal Merino Base Layer Crew Top

Women's Thermal Merino Rib Turtleneck

Men's Classic Thermal Merino Base Layer Bottom

Women's Classic Thermal Merino Base Layer One Piece Top

Men's Intraknit Thermal Merino Base Layer Colorblock Crew Top

Men's Classic Thermal Merino Base Layer Colorblock Crew Top

Women's Classic Thermal Merino Base Layer Bottom

Men's Active Boxer Brief

Men's Merino Boxer Brief

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

Men's Merino Print Boxer Brief

Men's Classic Thermal Merino Base Layer Bottom

Women's Merino Bikini

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

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

Women's Thermal Drape Neck Hoodie

Men's Merino Boxer Brief