Rampage Intense Women US 5 Black Knee High Boot Synthetic Synthetic sole Shaft measures approximately 16" from arch Boot opening measures approximately 16" around The style name is Intense. The style number is 339905-BLK. Brand Color: Black (Main Color: Black) Material: Synthetic Measurements: Shaft measures 16", Circumference measures 16" and 1.5" heel Width: B(M)