Bogs Women's B-Moc Quilt Puff Snow Boot 100% Textile Imported Synthetic sole Shaft measures approximately 8.25" from arch Boot opening measures approximately 13" around ogs Max-WickTM moves sweat away from your foot keep you dry Lined with DuraFresh bio-technology that activates to fight odors Rebound technology in outsole for lasting comfort Slip resistant outsole with BioGrip 100% Waterproof and Comfort rated to -22 F/-30 C