Shop Base Layer Clothing @ REI - Boulder

Women's Classic All-Season Merino Base Layer Bottom

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

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

Women's Maipo Shorts

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

Women's Classic Thermal Merino Base Layer Crew 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

Men's Merino 200 Oasis LS Crewe

Women's Merino 200 Oasis LS Crewe

Men's Classic Thermal Merino Base Layer Bottom

Men's Classic All-Season Merino Base Layer Bottom

Men's Intraknit Thermal Merino Base Layer Crew Top

Women's Intraknit Thermal Merino Base Layer Crew Top

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

Men's Classic Thermal Merino Base Layer Crew Top

Women's Merino 200 Oasis Leggings

Men's Merino 260 Tech LS Crewe

Men's Intraknit Thermal Merino Base Layer Bottom

Men's Classic Thermal Merino Base Layer Bottom

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

Women's Classic Thermal Merino Base Layer Crew Plus Top

Women's Classic Thermal Merino Base Layer Bottom Plus

Men's Merino 200 Oasis Leggings wFly

Women's Intraknit Thermal Merino Base Layer Bottom

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

Men's Merino 260 Tech Leggings wFly

Men's Merino 260 Tech LS Half Zip