Shop Smartwool Base Layer Clothing

Men's Classic Thermal Merino Base Layer Crew

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

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

Women's Classic All-Season Merino Base Layer Bottom

Men's Intraknit Thermal Merino Base Layer Crew Top

Women's Intraknit Thermal Merino Base Layer Crew Top

Men's Intraknit Thermal Merino Base Layer Bottom

Women's Intraknit Thermal Merino Base Layer Bottom

Women's Classic Thermal Merino Base Layer Bottom Plus

Women's Classic Thermal Merino Base Layer Crew Plus Top

Women's Classic All-Season Merino Base Layer Bottom Plus

Women's Merino Bikini

Women's Classic Thermal Merino Base Layer Crew Top

Men's Merino Boxer Brief

Men's Classic Thermal Merino Base Layer Crew Top

Women's Merino Blend Bralette

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

Women's Classic Thermal Merino Base Layer Bottom

Men's Active Boxer Brief

Women's Intraknit Hipster

Women's Active Crop Bra

Women's Everyday Merino Bikini

Men's Merino Boxer Brief

Men's Classic Thermal Merino Base Layer Bottom

Men's Everyday Merino Boxer Brief

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

Women's Everyday Merino Thong