Hush Puppies Women's Fiona Alternative Boot 100% Synthetic Imported Synthetic sole Shaft measures approximately 6" from arch Heel measures approximately 1.5" Platform measures approximately 0.5" Boot opening measures approximately 11" around Hand burnished synthetic uppers6Breathable microfiber linings^Molded and contoured removable Ethylene vinyl acetate footbed combined with a breathable microfiber sock^1 1/4 inch molded wedge with a molded rubber outsole that provides traction and durability^Zerog technology provides lightweight comfort and exceptional comfort and exceptional flexibility