Bogs Women's Classic Winter Plaid Snow Boot 100% Textile Imported Rubber sole Shaft measures approximately 13" from arch Boot opening measures approximately 15" around Durable hand lasted 7mm Neo-TechTM insulation with a four way stretch inner bootie Contoured EVA footbed with DuraFresh bio-technology that activates to fight odors Lined with Bogs Max-WickTM to keep feet dry Non-marking and self-cleaning outsole 100% Waterproof and Comfort rated to -40 F/-40 C