Shop Base Layer Clothing @ REI - Perimeter

Women's Classic Thermal Merino Base Layer Crew Top

Men's Classic Thermal Merino Base Layer Crew Top

Women's Classic Thermal Merino Base Layer Bottom

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

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

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

Men's Classic Thermal Merino Base Layer Bottom

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

Men's Intraknit Thermal Merino Base Layer Crew Top

Women's Intraknit Thermal Merino Base Layer Crew Top

Women's Classic All-Season Merino Base Layer Bottom

Women's Intraknit Thermal Merino Base Layer Bottom

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

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

Men's Intraknit Thermal Merino Base Layer Bottom

Women's Classic Thermal Merino Base Layer Bottom Plus

Men's Merino 200 Oasis LS Crewe

Men's Classic All-Season Merino Base Layer Bottom

Women's Cap MW Crew

Women's Classic All-Season Merino Base Layer Bottom Plus

Women's 200 Oasis LS Crewe

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

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

Men's 200 Oasis Leggings w Fly

Women's Classic Thermal Merino Base Layer Crew Plus Top

Rho LT Bottom Men's

Women's Maipo 7/8 Tights

Rho LT Crew Neck Men's

Men's Cap MW Zip Neck

Women's Maipo Shorts