The Sparco RAPID driver's shoe is a highlight in its class and very comfortable to wear. The soft upper material made of slightly grained calf leather is particularly flexible and adapts individually to each foot. A flexible jacquard insert in the rear shaft area protects and offers a high degree of freedom of movement. Reinforcements in the most stressed areas ensure a longer service life. The shoe is equipped with a practical twist-lock fastener. This allows the shoe to be adjusted to the foot with micro-fine precision, thus enabling lightning-fast and perfect width adjustment.