Shop Smartwool Base Layer Clothing

Women's Classic All-Season 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 Everyday Merino Bikini

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 Bottom

Men's Brief

Women's Classic All-Season Merino Base Layer Bottom

Women's Classic Thermal Merino Base Layer Bottom Boxed

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

Men's Everyday Merino Boxer Brief Boxed

Kids' Classic Thermal Merino Base Layer Bottom

Women's Classic All-Season Merino Base Layer Bottom

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

Women's Intraknit Thermal Merino Base Layer Crew Top

Men's Merino Boxer Brief

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

Women's Merino Blend Bralette

Women's Intraknit Hipster

Men's Active Boxer Brief

Men's Merino Boxer Brief

Men's Everyday Merino Boxer Brief

Women's Everyday Merino Thong

Women's Active Crop Bra

Women's Intraknit Bikini

Men's Intraknit Boxer Brief