KEEN Women's Silverton Waterproof Winter Boot 100% leather Rubber sole Shaft measures approximately 14.5" from arch Heel measures approximately 1.25" Boot opening measures approximately 16" around BLVD Collection 150g KEEN.Warm - lightweight, anti microbial charcoal bamboo insulation. - Compression molded EVA midsole Proprietary KEEN.DRY waterproof breathable membrane - KEEN Patented Toe Protection Removable metatomical footbed cradles foot with excellent arch support