Shop Smartwool Base Layer Clothing

Women's Classic Thermal Merino Base Layer Crew Top

Men's Classic Thermal Merino Base Layer Bottom

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

Women's Classic Thermal Merino Base Layer Bottom

Men's Classic Thermal Merino Base Layer Crew Top

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

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

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

Women's Intraknit Thermal Merino Base Layer Crew Top

Women's Thermal Merino Rib Turtleneck

Men's Intraknit Thermal Merino Base Layer Crew Top

Men's Intraknit Thermal Merino Base Layer Bottom

Men's Classic Thermal Merino Base Layer Colorblock Crew Top

Women's Intraknit Thermal Merino Base Layer Bottom

Men's Classic All-Season Merino Base Layer Bottom

Women's Merino Blend Bralette

Kid's Classic Thermal Merino Base Layer Crew Top

Men's Classic Thermal Merino Base Layer One Piece Top

Kid's Classic Thermal Merino Base Layer Bottom

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

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

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

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

Men's Classic All-Season Merino Base Layer 3/4 Bottom

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

Kids' Classic Merino Blend Base Layer Bottom

Men's Active Boxer Brief

Women's Intraknit Hipster

Women's Merino Bikini

Women's Intraknit Bikini