Apollo was the first manufacturer to recognize the potential of Split-Fin Technology. Every major dive company now offers some form of Split-Fin. In a sea of imitators Apollo's Bio-Fin Series has continually taken top honors. Every model Bio-Fin submitted to Scuba Diving Magazine (SDM) for annual review has rated "Testers' Choice". With eight consecutive wins, Apollo's Bio-Fin Series is clearly the fin to beat.