Koolaburra by UGG Women's Koola Tall Boot 100% Cow Suede Imported Dyed Shearling Lamb, Fur Origin: Australia Rubber sole Shaft measures approximately 10" from arch Platform measures approximately 0.5 inches Boot opening measures approximately 12.5" around Sheepskin and faux fur lining Tpr outsole Thinsulate sockliner Lightweight and durable molded EVA sole