Combining the comfort of a slipper with the traction of a winter boot, this down- insulated mule makes for the greatest slip-on footwear to kick-around at base camp or to wear while shuffling through snow to grab the morning paper. Durable, water-resistant, element-shedding 100% recycled P.E.T. ripstop upper. 500 fill power down insulation. Die-cut EVA and foam comfort footbed. 40% recycled die cut rubber outsole for supreme traction.