Developed with feedback from Sparco's top drivers, the all new Sparco X-Light ditches the traditional shoe tongue for a durable, elastic fabric that acts as an upper stretch panel. Providing a nearly sock-like fit, this Jacquard fabric panel eliminates the pressure point normally created by a padded tongue and allows the shoe to naturally stretch and breath. This same material is featured at the back heel to allow for total ankle/schilles freedom. Ultra soft calf skin leather is used to frame the rest of the shoe, providing natural fire proof qualities along with perforated vents to aid with airflow. Sparco's next-generation sole features a grippy pure-rubber compound with anti-static and fuel/oil resistant properties, and a unique ergonomically pre-formed cushioned insole.