Shop Smartwool Base Layer Tops @ J&H Outdoors

Women's Classic Thermal Merino Base Layer Crew Top

Men's Classic Thermal Merino Base Layer Crew Top

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

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

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

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

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

Women's Thermal Merino Rib Turtleneck

Men's Classic Thermal Merino Base Layer Colorblock Crew Top

Women's Classic Thermal Merino Base Layer 1/2 Zippers Hoodie

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