PRODUCT DETAIL: Wide upper strap detail Slip-on style Molded flexible footbed HEEL HEIGHT: 0.5" A18: 5.5(1)-6(2)-6.5(2)-7(3)-7.5(3)-8(2)-8.5(2)-9(2)-10(1) B18: 6(1)-6.5(1)-7(1)-7.5(2)-8(3)-8.5(3)-9(3)-10(3)-11(1) This style is manufactured by a vendor partner. Please note there may be variations in sizing and quality. Please note we will either send the A18 or B18 size pack depending on what we have in stock. If you have a preference, please send us a message.