When winters worst rolls around, keep warm with The North Face Mens Thermal Mule V casual shoes. These comfortable shoes resemble a puffer jacket and are packed with heat-trapping ThermoBall insulation to lock in body heat, whether hanging inside or heading outdoors. WEATHER-READY PERFORMANCE: PrimaLoft ThermoBall Eco synthetic insulation DESIGN: Durable, water-resistant, 100 percent recycled P.E.T. ripstop Collapsible heel with elastic side gore panels for easy on/off IN-SHOE COMFORT: Cozy Oso fleece lining DURABILITY & TRACTION: 40 percent recycled rubber outsole