Size Selections Are European Color/Material: Black Upper: 100% Cow Leather. Lining: 100% Cow Leather. Insole: 100% Cow Leather. Outsole: 100% Cuerolite. Hardware: 100% Zamak Ecologic Finishing . Embellishment: 100% Nickel Buckle Smooth Leather Insole Man-Made Sole 4.5In Heel Made In Spain