Shop Smartwool Base Layer Clothing

Women's Classic Thermal Merino Base Layer Crew Top

Women's Classic Thermal Merino Base Layer Bottom

Men's Classic Thermal Merino Base Layer Bottom

Men'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 Bottom

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

Men's Classic Thermal Merino Base Layer Crew Top

Men's Classic All-Season Merino Base Layer Bottom

Men's Classic Thermal Merino Base Layer Hoodie

Men's Classic Thermal Merino Base Layer One Piece Top

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

Women's Active Leggings

Women's Thermal Merino Rib Turtleneck

Men's Classic Thermal Merino Base Layer Colorblock Crew Top

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

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

Women's Merino Blend Bralette

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

Women's Active Crop Bra

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

Women's Intraknit Hipster

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

Women's Intraknit Bikini

Men's Intraknit Thermal Merino Base Layer Bottom

Women's Classic Thermal Merino Base Layer Crew

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

Men's Merino Boxer Brief

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

Men's Intraknit Thermal Merino Base Layer Crew Top