From Dansko, the Lucia Leather Slingback Clog Pumps feature: Leather upper Stapled construction Adjustable buckled sling strap closure Combination of 100% recycled textile and leather lining Chrome-free leather socklining for breathability treated with anti-microbial for odor control Energy-return PU footbed for shock absorption Lightweight BPU midsole with steel shank for supreme stability Flexible, lightweight TR rubber outsole Approx. 2" heel height Imported.