Sorel Women's Tivoli II Red Dahlia Boot - 10.5 B(M) US Upper: Waterproof sweatshirt upper. Waterproof breathable membrane construction. Fleece lining. Insulation: 100g insulation. Footbed: Removable molded EVA footbed, microfleece topcover. Midsole: Rubber. Outsole: Molded rubber outsole.