Brinley Co. Womens Regular and Wide-Calf Buckle Knee-High Ankle-Strap Dress Boot Faux leather Imported Synthetic sole Shaft measures approximately 17 from arch Platform measures approximately 3.50" Style: Boots Circumference: 15 inches Heel height/type: 3.5-inch block Shaft height: 17 inches Upper/outsole material: Polyurethane upper / TPR outsole