Features of the Sorel Women's Out N About III Puffy Zip Shoe Upper: Lighthearted puffy Upper with Oversized front zipper Waterproof bootie construction Zippers Are not waterproof Microfleece lining Insulation: 300g Insulation Footbed: Removable molded EVA Footbed with microfleece topcover Midsole: Internal PU Midsole with vulcanized rubber foxing tape Outsole: Handcrafted vulcanized herringbone Outsole Vulcanized rubber compound for enhanced traction