Journee Collection Womens Regular Sized and Wide-Calf Side-Zipper Knee-High Riding Boot Faux leather Imported Rubber sole Shaft measures approximately 16 from arch Platform measures approximately .50" This style is available in REGULAR CALF-B(M) US and WIDE CALF-C/D US. Circumference: 15 inches, Wide calf: 17 inches Heel height/type: 1.1-inch block Style: Riding boot Upper/outsole material: Faux leather upper/ Rubber outsole