The men’s Thermoball TRACTION MULES IV are the latest iteration of a classic slipper, with better warmth and comfort than ever. Thermoball construction takes a leading insulation technology to slippers, with the synthetic mimicking goose down loft and retaining heat. The Oslo fleece lining keeps heat on the inside. The upper is a water-resistant, 100% recycled PET ripstop. 40% recycled rubber is used on the traction outsole. The heel collapses and elastic side gore panels help slipping in and out of the slippers.
