Brinley Co Women's Molly Knee High Boot PU Imported Synthetic sole Shaft measures approximately knee-high" from arch Platform measures approximately .50" inches inches inches Boot opening measures approximately 18" around This style is also available in Wide Calf. Circumference: 15 inches, Wide Calf Circumference: 17 inches Heel height/type: 1-inch block Style: Riding Boot Upper/outsole material: Polyurethane upper/ TPR outsole