From UGG® Australia, the Volta women's booties feature: water-resistant suede upper fixed leather straps medial zipper for easy on/off leather lining foam-cushioned footbed moisture-wicking 7mm curly UGGpureTM sockliner with woven logo label rubber midsole leather welt rubber outsole approx. 4" shaft height 1.75" distressed stacked heel artificially dyed and treated real sheepskin from sheep or lamb (Australia, European Union or United States) Imported.