Shop Base Layer Clothing @ Mountain Sports Outlet

Men's Classic All-Season Merino Base Layer Bottom

Women'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

Women's Cap MW Crew

Women's Cap MW Zip Neck

Women's Maipo 7/8 Tights

Women's Cap TW Zip Neck

Women's Fryd Baselayer Pants

Men's LIFA Merino Midweight Base Layer Pants

Women's Floke Wool Pant - 60% Merino Wool

Men's Burton Midweight Base Layer Pant

Women's Merino 250 Plant-Based Dye Logo Hoodie

Women's Summit Pro 120 Crew

Kids' Base Layer Tech T-Shirt

Women's Summit Pro 120 Tight

Kids' & Toddlers' Midweight Base Layer Set

Women's Midweight Base Layer Crewneck

Toddlers' Fleece Base Layer Set

Men's Midweight X Base Layer Three-Quarter Boot Pants

Women's Midweight Base Layer Pants

Women's Midweight Base Layer Crewneck

Kids' Fleece Base Layer Set

Women's Lightweight X Base Layer Crewneck

Women's Burton Midweight Base Layer Pants

Women's Midweight X Base Layer Pants

Men's Midweight Base Layer Long Neck Shirt

Men's Midweight Base Layer Crewneck