Carlos Santana Hanna 2 Women US 6 Black Knee High Boot Synthetic Synthetic sole Shaft measures approximately 15.5" from arch Boot opening measures approximately 15" around The style name is Hanna 2 Wide Calf. The style number is D1953S2003/WC. Brand Color: Black (Main Color: Black) Material: Synthetic Measurements: Shaft measures 15.5", Circumference measures 15" and 1" heel Width: B(M)