Bella Vita Women's Camy II Plus Calf Harness Boot 100% Fabric Imported Synthetic sole Shaft measures approximately 16.25" from arch Heel measures approximately 2.5" Platform measures approximately 0.25" Boot opening measures approximately 16.25" around Shaft Height: 15 25/64" (Size 8.5 or 9) Circumference: 16 21/64" (Size 8.5 or 9) Dimensions: 2.25 Fit: True to Size Insole: Fiberboard