Smartwool Men's Merino 150 Base Layer BottomThe Merino 150 Base Layer Bottom keeps you comfortable everywhere from the slopes to your campsite. It helps regulate body temperature, breathes well, and naturally resists odors when you're wearing these base layer pants. FEATURES: Style: SW016043, SW000754 Smartwool Apparel Size Guide The Merino 150 Baselayer Bottom stands apart from your standard layering system with a specialized blend of supersoft, next to skin comfort and workout tested