G By Guess Gaines Women US 7.5 Black Knee High Boot Synthetic Synthetic sole Shaft measures approximately 17" from arch Boot opening measures approximately 18" around The style name is Gaines. The style number is GAINES-BLK. Brand Color: Black (Main Color: Black) Material: Synthetic Measurements: Shaft measures 17", Circumference measures 18" and 2" heel Width: B(M)