Bogs Women's North Hampton Cravat Waterproof Insulated Boot 100% - 52% Rubber/48% Textile Imported Synthetic sole Shaft measures approximately 13.5" from arch Heel measures approximately 1" Boot opening measures approximately 16.25" around Streamlined upper design with rubber trimmed handles Constructed with 5mm Bogs Neo-TechTM insulation Lined with Bogs Max-WickTM to keep feet dry Molded EVA footbed with DuraFresh bio-technology that activates to fight odors 100% Waterproof and Comfort rated to 5 F/-15 C