The women’s Thermoball TRACTION MULES IV have better warmth and comfort than ever in an updated slipper classic. Thermoball construction takes a synthetic insulation mimicking goose down’s heat retention. The Oslo fleece lining keeps that heat on the inside. The upper is a water-resistant, 100% recycled PET ripstop. 40% recycled rubber is used on the traction outsole. The collapsing heel and elastic side gore panels make in-out easy.
