Lightly Used LIGHTWEIGHT WARMTH - waterproof Made for cold-weather comfort, SOREL's Carnival Felt boot blends slipper-like warmth with an ultralight build to bring you all the warmth without the weight. INSULATION: 100g insulation. FOOTBED: Molded PU-like EVA footbed with microfleece topcover. MIDSOLE: Molded EVA with iconic SOREL scallops with rubber heel logo. OUTSOLE: Outsole grade EVA with high traction rubber down the center for better grip.