Franco Sarto Crash Wide Calf Women US 7 Black Knee High Boot Leather Synthetic sole Shaft measures approximately 11.5" from arch Boot opening measures approximately 16" around The style name / style number is Crash Wide Calf / D0258L2002/WC Color: Black/Black Material: Leather Measurements: Shaft measures 11.5", Circumference measures 16" and 1.75" heel Width: B(M)