Journee Collection Womens Button Detail Ankle-Strap Knee-High Riding Boot Polyurethane leather Imported Rubber sole Shaft measures approximately 16 from arch Platform measures approximately 1.25" Style: Boots. This style is also available in Wide Calf. Circumference: 16 inches, Wide Calf Circumference: 18 inches Shaft height: 16 inches Heel height/type: 1.2-inch block Upper/outsole material: Polyurethane upper/ Rubber outsole