Rubber.200g insulation.Removable molded PU-like EVA footbed, microfleece topcover.Molded rubber.Waterproof nylon upper and PU coated synthetic overlays. Faux fur and microfleece lining (1920331,1920332) or textile and microfleece lining (1930351,1930352) or felt and microfleece lining (1921411,1921412) Waterproof bootie construction. Nylon heel pull tab. Hook and loop closure.