From Naturalizer, the Phoenix Leather Knee High Boots features: Leather upper with trapunto detailing Inside zipper closure Fabric lining Contour + Comfort technology for a premium fit and all-day comfort experience Synthetic outsole Approx. 14.38" boot shaft height Approx. 14.75" standard boot shaft circumference Approx. 16.75" wide boot shaft circumference  Approx. 2.38" block heel height Imported. Styling Notes: Consciously packaged: our shoe boxes are made of recycled paper + soy-based ink