Shop Smartwool Base Layer Clothing

Women's Classic Thermal Merino Base Layer Crew Top

Men'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

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

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

Women's Classic Thermal Merino Base Layer Crew

Men's Intraknit Thermal Merino Base Layer Crew Top

Women's Active Crop Bra

Women's Intraknit Thermal Merino Base Layer Bottom

Women's Merino Blend Bralette

Women's Intraknit Thermal Merino Base Layer Crew Top

Men's Classic All-Season Merino Base Layer Bottom

Women's Classic All-Season Merino Base Layer Bottom

Men's Intraknit Thermal Merino Base Layer Bottom

Men's Classic Thermal Merino Base Layer Crew Top

Women's Everyday Merino Thong

Women's Active Leggings

Women's Everyday Merino Bikini

Men's Wind Boxer Brief

Women's Classic Thermal Merino Base Layer Crew Plus Top

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

Men's Classic Thermal Merino Base Layer Crew

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

Women's Thermal Merino Rib Turtleneck

Women's Classic Thermal Merino Base Layer Bottom

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

Men's Classic Thermal Merino Base Layer Bottom

Women's Classic Thermal Merino Base Layer Bottom Plus

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