UGG Womens Classic Short Boot Smooth Blue Size 8 Sheepskin Shaft measures approximately 9" from arch 17mm grade "A" Twinface sheepskin, sueded heel guards and nylon binding Cushy foam for extra comfort. Covered with a genuine sheepskin sockliner or UGGpure wool Comfortably light and flexible molded EVA bottom with a patent protected outsole design 8" twinface shaft height. 1" heel height