When it comes to having fun while finning in warm water, the TWIN JET FULL FOOT can’t be beat. This lively kicker offers all of the performance characteristics of the adjustable Twin Jet but with a comfortable full foot pocket for barefoot diving. Employing what's known as "propeller technology," the distinctive split hydrofoil shape of the blade allows water to flow between and around each of the twin blades, which flex independently to produce propulsion.