XOXO Marcher Wide Calf Women US 7.5 Brown Knee High Boot Synthetic Synthetic sole Shaft measures approximately 17" from arch Boot opening measures approximately 17" around The style name / style number is Marcher Wide Calf / XO143366-BRN/WC Color: Brown Material: Synthetic Measurements: Shaft measures 17", Circumference measures 17" and 1.25" heel Width: B(M)