From Dr. Martens, the Women's Sinclair Front Zip Platform Combat Booties feature: Soft, milled Nappa leather upper Front lace up closure with removable front zipper panel Leather lining Classic Docs DNA including visible yellow stitching, grooved sides, and a scripted heel-loop Air cushioned rubber outsole Approx. 5.5" shaft height Approx. 11" shaft circumference Approx. 1.5" platform height Approx. 2" heel height Imported.