Designed for base camp, après ski, or lazy days around the house, the ThermoBall Traction Mules offer warmth and comfort during the in-between times. A recycled ripstop upper with a durable water-repellent finish helps to keep your feet dry, while lightweight ThermoBall Eco insulation retains warmth. Underneath, a high-traction rubber outsole enhances grip so you can wear these for more than merely lounging on the couch.