Shop Smartwool Base Layer

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

Men's Classic Thermal Merino Base Layer Crew Top

Women's Classic Thermal Merino Base Layer Crew Top

Men's Classic Thermal Merino Base Layer Bottom

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

Women's Classic Thermal Merino Base Layer Bottom

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

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

Women's Classic Thermal Merino Mock Neck

Women's Intraknit Thermal Merino Base Layer Crew Top

Men's Intraknit Thermal Merino Base Layer Crew Top

Men's Intraknit Thermal Merino Base Layer Bottom

Men's Intraknit All-Season Merino Base Layer Crew Top

Women's Thermal Merino Rib Turtleneck

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

Women's Intraknit All-Season Merino Base Layer Bottom

Men's Classic All-Season Merino Base Layer Bottom

Women's Intraknit Thermal Merino Base Layer Bottom

Men's Classic Thermal Merino Base Layer Hoodie

Kid's Classic Thermal Merino Base Layer Crew Top

Women's Classic Thermal Merino Base Layer Crew Top

Men's Classic Thermal Merino Base Layer Colorblock Crew Top

Women's Classic All-Season Merino Base Layer Bottom

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

Men's Classic Thermal Merino Base Layer Crew

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

Kid's Classic Thermal Merino Base Layer Bottom

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

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

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