Nine West Women's Bestdressn Knee-High Boot 100% Leather Synthetic sole Shaft measures approximately 17" from arch Heel measures approximately 3.25" Boot opening measures approximately 14.25" around Make the top of the Bestdressn list with Nine Wests remarkable knee-high boot. This design features a magnificent leather or suede upper with leather piping in a classic silhouette that lends polish and poise to any ensemble. Its full side zipper gets you in and out in a breeze, but its the decorative zipper at the ankle that adds the most pizzazz.