Thermoball Traction Mule
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    DetailLike a puffer jacket for your feet, the Thermoball Traction Mule from The North Face features a quilted ripstop nylon upper woven entirely from recycled materials and packed with proprietary ThermoBall™ eco insulation. A pull-tab rounds the collapsible heel while half dome logo embroidery lands atop the forefoot. Layered underfoot we find a rubber midsole set atop a treaded rubber outsole for traction. 
 
        
         
           
           
           
          