Brinley Womens High Heel Microsuede Knee-high Boots Synthetic Shaft measures approximately 15.5 from arch Boot opening measures approximately 17 around Height: Mid-calf, Style: Inside zip, material: Man-made Toe shape: Almond, Heel height/type: 3.5-inch stiletto Platform height: 0.75 inches, Shaft height: 15.5 inches, Circumference: 17 inches Lining: Soft knit, Sole: Smooth rubber, Footbed: Slightly padded Faux suede upper/man-made outsole, Model: SAFARI-23, All measurements are approximate and were taken using a size 8. Please note measurements may vary slightly by size.