Brinley Co. Womens Regular and Wide-Calf Knee-High Buckle Straps Dress Riding Boot Faux leather Imported Synthetic sole Shaft measures approximately 16 from arch Platform measures approximately .50" This style is available in regular and wide calf sizes. Circumference: 15 inches, Wide calf: 17 inches Heel height/type: 2.5-inch block Style: Riding boot Upper/outsole material: Faux leather upper/TPR outsole