From 27 EDIT Naturalizer, the Oslo Leather Bit Hardware Tall Boots feature: Leather upper  Round toe Side bit detail Full length inside zip closure Contour+ Comfort technology for a premium fit and all-day comfort experience Approx. 1.375" block heel Approx. 14.75" boot height Approx. 14.625" calf circumference Imported. Styling Notes: Note: Measurements based on size 6 boot. For each half size larger, shaft height increases by .12 inches, circumference by .20 inches