Shop Smartwool Base Layer Clothing

Women's Classic Thermal Merino Base Layer Crew Top

Men's Classic Thermal Merino Base Layer Crew Top

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

Women's Classic Thermal Merino Base Layer Bottom

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

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

Men's Classic Thermal Merino Base Layer Bottom

Women's Everyday Merino Bikini

Women's Thermal Merino Rib Turtleneck

Kid's Classic Thermal Merino Base Layer Crew Top

Women's Classic Thermal Merino Base Layer One Piece Top

Kid's Classic Thermal Merino Base Layer Bottom

Men's Classic Thermal Merino Base Layer Colorblock Crew Top

Men's Classic Thermal Merino Base Layer 3/4 Bottom

Men's Intraknit Thermal Merino Base Layer Colorblock Crew Top

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

Kids' Classic Merino Blend Base Layer Bottom

Men's Active Boxer Brief

Men's Merino Boxer Brief

Men's Merino Print Boxer Brief

Women's Classic Thermal Merino Base Layer 3/4 Bottom

Women's Merino Bikini

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

Women's Thermal Drape Neck Hoodie

Men's Classic All-Season Merino Base Layer Bottom

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

Men's Merino Boxer Brief

Women's Intraknit Thermal Merino Base Layer Crew Top

Women's Merino Blend Bralette

Men's Active Boxer Brief