From Sorel, the Girls' Sorel Explorer™ III Cold Weather Waterproof Boots feature:  Waterproof metallic leather upper Waterproof bootie construction PU coated synthetic overlays Microfleece lining Medial zipper Laces are not waterproof 100g insulation Molded EVA with microfleece topcover footbed Molded EVA midsole Molded DUOTREAD™ outsole with rubber pods in key traction zones Ground contact EVA perimeter Imported.