Conventional paddle fins work by pushing water rear-ward. In contrast, the SplitFin slices though the water with two wing shaped surfaces, creating lift and forward propulsion more like a propeller. Any water traveling over the top of the blade is funneled into and out of the opening (split) between the blades. Drag is reduced, effort is reduced and efficiency is increased. Atomic SplitFins use Propeller-Fin

SplitFins are to incredibly easy to kick. In fact, they may feel so easy that you wonder if you are moving. Dont worry, youre probably going just as fast as you did with your old fins, but with much less effort. Although Split-Fins work with a variety of kicking styles, a smaller-range, more frequent flutter kick delivers maximum per-formance. The flutter kick also keeps your legs within the slipstream of your body profile effectively reducing drag. Less drag means more speed with less effort.