Shop Base Layer Clothing @ REI - Seattle Flagship

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

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

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

Women's Classic Thermal Merino Base Layer Crew Top

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

Men's Sea to Shore 2N1

Men's Classic Thermal Merino Base Layer Crew Top

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

Women's Classic All-Season Merino Base Layer Crew Top

Men's Quest Quick-Dry Mesh (2 Pack) Boxer Briefs

Women's Intraknit Thermal Merino Base Layer Crew Top

Men's Classic All-Season Merino Base Layer Bottom

Men's Intraknit Thermal Merino Base Layer Crew Top

Men's Merino 200 Oasis LS Crewe

Women's Classic Thermal Merino Base Layer Bottom

Women's 200 Oasis LS Crewe

Women's Merino 200 Oasis LS Crewe

Women's Cap MW Bottoms

Women's Intraknit Thermal Merino Base Layer Bottom

Women's Merino Blend 125 Cool-Lite Sphere LS Tee

Women's Cap MW Zip Neck

Men's Intraknit Thermal Merino Base Layer Bottom

Men's Cap MW Zip Neck

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

Men's Classic Thermal Merino Base Layer Bottom

Men's 200 Oasis Leggings w Fly

Men's Merino 260 Tech LS Crewe

Women's Classic Thermal Merino Base Layer Crew Plus Top

Women's Cap MW Crew

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