Lauren Ralph Lauren Women's Micaela Wide Calf Riding Boot 100% Leather Imported Synthetic sole Shaft measures approximately 16" from arch Boot opening measures approximately 17" around Add the LAUREN by Ralph Lauren&trade; Micaela Wide to your collection for ultimate style. Leather upper. Slip-on construction with side zip closure. Round toe. Fabric lining. Lightly padded insole. Stacked heel. Synthetic outsole. Measurements: Heel Height: 1 1&frasl;2 in Weight: 1 lb 3 oz Circumference: 17 in Shaft: 16 in Product measurements were taken using size 9, width B - Medium. Please note that measurements may vary by size.