Shop Smartwool Base Layer Clothing

Women's Intraknit Thermal Merino Base Layer Crew Top

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

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

Men's Classic All-Season Merino Base Layer Bottom

Women's Classic Thermal Merino Base Layer Crew Top

Men's Everyday Party Short Sleeve Button Down T-Shirt

Women's Merino Blend Bralette

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

Men's Classic Thermal Merino Base Layer Crew Top

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

Women's Everyday Merino Bikini

Women's Classic Thermal Merino Base Layer Bottom

Women's Active Crop Bra

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

Men's Classic Thermal Merino Base Layer Bottom

Women's Classic Thermal Merino Base Layer Crew Top Boxed

Men's Intraknit Thermal Merino Base Layer Crew Top

Women's Classic All-Season Merino Base Layer Bottom

Women's Intraknit Hipster

Kids' Classic Thermal Merino Base Layer Crew Top

Women's Classic Thermal Merino Base Layer Bottom Boxed

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

Men's Classic Thermal Merino Base Layer Crew Top Boxed

Men's Merino Boxer Brief Boxed

Men's Intraknit Thermal Merino Base Layer Bottom

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

Women's Intraknit Thermal Merino Base Layer Bottom

Women's Merino Bikini

Kids' Classic Thermal Merino Base Layer Bottom

Men's Boxer Brief Boxed