Take on the cold in these cosy mules when popping out for some chores, or relax after a long day by the fireside. Sub-zero conditions are no match for the ThermoBall™ Eco mule slipper from The North Face with its cosy fleece lining, which keeps your feet warm and snug when you're relaxing. You'll find the tough ripstop material and high-traction rubber outsoles are just the right thing.