VESTITURE Women's Alamo Black Extra Wide Calf Leather Riding Boot 100% Leather Imported From Mexico Synthetic sole Shaft measures approximately 15.5" from arch Heel measures approximately 1.5" Boot opening measures approximately 17.25" around Extra Wide Calf Circumference Approximately 17.3" size 7 to 20" size 12 - measure your calf from widest point - full back zipper for easy entry Shaft Height Approximately 15.5" size 7 to 16.5" size 12 measured from the arch to top of boot shaft - Approximately 1.5" leather wrapped heel Designed for the "Cool Calf Community" who deserve chic Vintage Forward boots that conform to their personal shape and sense of style Vestiture is crafted with the proprietary "Science of Width" custom fit technology designed for women's special measures - our Master Fit Technician is an industry legend with over 40 years experience manufacturing wide width and wide calf boots Benchcrafted and hand finished in Mexico by expert boot artisans