Milano buckled slingback sandals Milano buckled slingback sandals from BIRKENSTOCK featuring brown, calf leather, gold-tone hardware, two buckle-strap fastenings, buckle-fastening ankle strap, round toe, branded insole, moulded footbed and flat rubber sole. Imported Composition Sole: Rubber 100% Outer: Calf Leather 100% Lining: Calf Leather 100% SIZE & FIT Measurement HEEL 1 in(2.5 cm) Sole height 0.6 in(1.5 cm)