Shop Smartwool Base Layer Clothing @ Bivouac

Women's Classic All-Season Merino Base Layer Bottom

Women'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

Men'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 Crew Top

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

Women's Classic Thermal Merino Base Layer Bottom

Women's Everyday Merino Bikini

Men's Classic Thermal Merino Base Layer Bottom

Women's Everyday Merino Thong

Men's Intraknit Thermal Merino Base Layer Crew Top

Men's Brief

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

Women's Classic Thermal Merino Base Layer Bottom Plus

Men's Intraknit Thermal Merino Base Layer Colorblock Crew Top

Women's Merino Bikini

Men's Merino Boxer Brief

Men's Active Boxer Brief

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

Women's Intraknit Bikini