Shop Smartwool Base Layer Clothing @ Backcountry

Men's Classic All-Season Merino Base Layer Bottom

Women's Merino Blend Bralette

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

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

Women's Everyday Merino Bikini

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

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

Men's Classic Thermal Merino Base Layer Crew Top

Women's Active Crop Bra

Women's Classic Thermal Merino Base Layer Crew Top

Women's Intraknit Thermal Merino Base Layer Crew Top

Women's Classic Thermal Merino Base Layer Bottom

Men's Brief

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

Men's Intraknit Thermal Merino Base Layer Crew Top

Men's Intraknit Thermal Merino Base Layer Bottom

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

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

Women's Merino Bikini

Women's Thermal Merino Rib Turtleneck

Men's Classic Thermal Merino Base Layer Bottom

Women's Classic Thermal Merino Base Layer One Piece Top

Men's Classic Thermal Merino Base Layer Crew Top

Women's Intraknit Thermal Merino Base Layer Bottom

Women's Classic All-Season Merino Base Layer Bottom

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

Women's Intraknit Hipster

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

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

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