The Superleggera SL-9Z is the ultimate ulra-light weight driving shoe. It was designed for the top level professional teams looking to save weight in every possible way. The Supperleggera SL-9Z is 40% lighter than a standard racing shoe by using a combination of suede leather and light weight fabric. This combination provides an extremly comforable fit, highly breathable and offers a high level of protection. The ultra-thin oil-resistant and anti-static sole offers comfort and greater pedal sensitivity. The Formula A has a Texcon inner sole with Bayer anti-bacterial treatment. Available in black only in sizes from 38 to 48.