This foot pocket has been created to optimize the impulse carbon fin, permitting more fluid movement of the carbonfibre blade. The short rail allows the design of the blade permitting an undulating s movement to be exploited to the full. The foot pocket adapts perfectly to the plastic impulse, making it even lighter and more effective, while it finds in the sprint fin its natural home and utmost performance. The foot pocket is made with two materials and features the self-adjusting system already seen on the gara modular. It is assembled using the same interface, with two screws and plastic plates. The novelty is that the tips of the rails are over-moulded with a third, highly reactive material in the form of two clips. This new clasp permits easy and secure assembly. Should it be necessary to change a blade, all that is needed is a slight twist on the tips to release the retaining teeth and free the blade