UGG Women's Aliso Winter Boot 100% Pretreated nubuck Imported Dyed sheep fur (Fur Origin: Australia, Ireland, the United Kingdom, or the United States) Rubber sole Shaft measures approximately 5" from arch Boot opening measures approximately 11" around Fur shaft lining. UGGpure wool vamp lining and insole Pretreated to repel moisture and stains Nubuck upper that is pretreated to repel moisture and stains Removable top strap with hardware details 5" shaft height