From Naturalizer, the Ontime Leather Tall Boots feature: Leather upper  Round toe Full length inside zip closure Contour+ Comfort technology for a premium fit and all-day comfort experience Approx. 1.375" block heel Approx. 15.47" boot height Approx. 15.12" calf circumference Imported. Styling Notes: Measurements based on size 6 boot. For each half size larger, shaft height increases by 0.12 inches, circumference by 0.20 inches