Shop Smartwool Base Layer Clothing

Women's Intraknit Thermal 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 All-Season Merino Base Layer Crew Top

Women's Classic Thermal Merino Base Layer Crew Top

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 Classic Thermal Merino Base Layer Bottom

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

Men's Classic Thermal Merino Base Layer Hoodie

Men's Classic Thermal Merino Base Layer Bottom

Men's Intraknit Thermal Merino Base Layer Crew Top

Women's Classic All-Season Merino Base Layer Bottom

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

Women's Intraknit Thermal Merino Base Layer Bottom

Women's Classic Thermal Merino Base Layer Bottom Plus

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

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

Women's Merino Bikini

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

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