ECCO Women's Shape 75 Sleek Ankle Boot 100% Calf Leather Imported Synthetic sole Shaft measures approximately 5" from arch Heel measures approximately 3.5" Boot opening measures approximately 9.75" around Sophisticated uppers are handcrafted from premium calf leather ensuring the utmost softness and lightness Anatomical shank combined with polyurethane provides optimal all-day comfort 3.0 inch (75 mm) heel height Direct-injected, pu outsole with a sleek leather wrapped heel which is comfortable, lightweight and flexible Molded anatomical foot bed with a premium leather sock lining