Post-expedition comfort should never be an afterthought. That’s why we created one of our most iconic styles—the The North Face THERMOBALL Traction "Grey/Black" Men's Mule. As the original off-grid slip-ons, these warm, durable shoes were born at base camp but adapted for everyday life. Lightweight and packable for easy transportation. Insulated and fleece-lined for unrivaled comfort and warmth. These are the all-in-one solution for running errands, après relaxation or kicking-back at camp. These are an icon. <ul> <li>Collapsible Heel With Elastic Side Panels For Easy On/Off</li> <li>Oso Fleece Collar Lining For Added Comfort</li> <li>Sole Unit: Outsole Made With Up To 20% Recycled Rubber</li> <li>Thermoball™ 100% Recycled Polyester Insulation Helps Keep Feet Warm Even When Wet</li> <li>Upper: Upper Made With 100% Recycled P.E.T. Ripstop With A Non-PFC Durable Water-Repellent (Non-PFC DWR) Finish For Added Water Repellency</li> </ul>