Shop Smartwool Base Layer Bottoms

Men's Classic All-Season Merino Base Layer Bottom

Men's Intraknit Thermal Merino Base Layer Bottom

Women's Intraknit Thermal Merino Base Layer Bottom

Men's Intraknit Thermal Merino Base Layer 3/4 Bottom

Women's Classic Thermal Merino Base Layer Bottom

Men's Classic All-Season Merino Base Layer 3/4 Bottom

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

Men's Classic Thermal Merino Base Layer 3/4 Bottom

Men's Classic Thermal Merino Base Layer Bottom

Women's Classic All-Season Merino Base Layer Bottom

Women's Classic Thermal Merino Base Layer 3/4 Bottom

Men's Classic Thermal Merino Base Layer 3/4 Bottom

Women's Classic Thermal Merino Base Layer Bottom

Men's Classic Thermal Merino Base Layer Bottom

Women's Classic Thermal Merino Base Layer Bottom Plus

Men's Classic All-Season Merino Base Layer Bottom Boxed

Men's Classic All-Season Merino Base Layer Bottom

Women's Classic All-Season Merino Base Layer Bottom

Kids' Classic Thermal Merino Base Layer Bottom

Men's Classic Thermal Merino Base Layer Bottom

Women's Intraknit Thermal Merino Base Layer 3/4 Bottom

Women's Classic Thermal Merino Base Layer 3/4 Bottom

Women's Classic All-Season Merino Base Layer Bottom

Men's Classic All-Season Merino Base Layer Bottom

Women's Merino Sport Seamless Hipster

Men's Intraknit Active Base Layer Bottom

Men's Intraknit Merino 200 Bottom

Women's Classic Thermal Merino Base Layer Pattern Bottom

Men's Merino Sport Boxer Brief

Kid's Classic Thermal Merino Base Layer Pattern Bottom