Baffin Women's Allie Insulated Suede Winter Boot 100% Leather Imported Synthetic sole Shaft measures approximately 13" from arch Boot opening measures approximately 15.5" around Treated suede for water repellency and stain protection Insulated with baffin's b-tek synthetic insulation for superior warmth yet still lightweight, rated to negative 4 degrees fahrenheit Ankle zip for convenient on/off Functional and fashionable Anatomical footbed for all day comfort and support