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 Thermal Merino Base Layer Crew Top

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

Men's Classic Thermal Merino Base Layer Crew Top

Women's Merino Blend Bralette

Women's Classic All-Season 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 Everyday Merino Bikini

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

Women's Classic All-Season Merino Base Layer Bottom

Kids' Classic Thermal Merino Base Layer Crew Top

Men's Intraknit Thermal Merino Base Layer Crew Top

Men's Intraknit Thermal Merino Base Layer Colorblock Crew Top

Men's Intraknit Thermal Merino Base Layer Bottom

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

Kids' Classic Thermal Merino Base Layer Bottom

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

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

Women's Intraknit Thermal Merino Base Layer Bottom

Women's Classic Thermal Merino Base Layer Bottom Plus

Women's Classic Thermal Merino Base Layer Crew Plus Top

Men's Active Boxer Brief Boxed

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

Women's Merino Bikini

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

Men's Classic Thermal Merino Base Layer Crew Top

Men's Classic Thermal Merino Base Layer Colorblock Crew Top