Shop Smartwool Base Layer Clothing

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

Men's Classic All-Season Merino Base Layer Bottom

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

Women's Classic All-Season Merino Base Layer Bottom

Women's Intraknit Thermal Merino Base Layer Crew Top

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

Men's Merino Boxer Brief

Women's Classic Thermal Merino Base Layer Crew Top

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

Women's Merino Blend Bralette

Women's Intraknit Hipster

Men's Classic Thermal Merino Base Layer Crew Top

Men's Active Boxer Brief

Men's Merino Boxer Brief

Men's Everyday Merino Boxer Brief

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

Women's Everyday Merino Bikini

Women's Everyday Merino Thong

Women's Active Crop Bra

Women's Intraknit Bikini

Men's Intraknit Boxer Brief

Women's Classic Thermal Merino Base Layer Bottom

Men's Merino Boxer

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

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

Women's Merino Bikini

Men's Classic Thermal Merino Base Layer Bottom

Men's Brief

Women's Classic Thermal Merino Base Layer Crew Top Boxed

Men's Classic Thermal Merino Base Layer Hoodie