Shop Smartwool Base Layer Clothing

Women's Classic Thermal Merino Base Layer Crew Top

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 Bottom

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 1/2 Zippers Hoodie

Women's Thermal Merino Rib Turtleneck

Men's Classic Thermal Merino Base Layer Colorblock Crew Top

Men's Classic Thermal Merino Base Layer Crew

Women's Classic All-Season Merino Base Layer Bottom

Women's Classic Thermal Merino Base Layer Bottom

Women's Classic Thermal Merino Base Layer Crew Plus Top

Men's Classic Thermal Merino Base Layer Bottom

Women's Classic Thermal Merino Base Layer Bottom Plus

Men's Merino Boxer Brief

Women's Intraknit Hipster

Women's Intraknit Bikini

Men's Classic Thermal Merino Base Layer 1/4 Zip

Women's Classic Thermal Merino Base Layer 1/4 Zip

Men's Merino Sport Wind Boxer Brief

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

Men's Intraknit Thermal Merino Base Layer 1/4 Zip

Men's Merino Sport Fleece Wind Tight

Men's Merino Sport Fleece Tight

Women's Classic Thermal Merino Base Layer Colorblock 1/4 Zip

Men's Merino Sport Fleece Pant

Women's Intraknit Thermal Max Merino Base Layer 1/4 Zip

Thermal Merino Reversible Neck Gaiter

Men's Classic Thermal Merino Base Layer Crew