Brinley Co. Womens Buckle-Strap Wedge Knee-High Dress Boots Polyurethane leather Imported Synthetic sole Shaft measures approximately 18 from arch Platform measures approximately 3.00" Buckle accent wedge boots Shaft height: 18 inches Circumference: 18.5 inches Upper/outsole material: Polyurethane upper / TPR outsole Heel height/type: 3-inch wedge