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. 

The Apollo Bio-Fin standards of 100% Rubber and 20 degree Angle help this Fin provide Excellent Performance, Low Strain, and Reduced Air Consumption. Some people feel that the more Rigid Blade makes it Respond Slightly Quicker to Direction Changes and Alternate Kicking Styles. It is an excellent choice for very Strong Kickers as the more Rigid Blade provides a Stronger Resistance and more Traditional Paddle Fin Feel. Apollo's Split Fin design is consistently rated as the Fasted Fin in the Water providing Excellent Maneuverability and Position Control. 

The Bio Fin Increases Bottom Time, Improves Ability to Swim Against Strong Currents, Increased Comfort and Enjoyment, Improves Performance and Comfort on the Surface, Increases Maximum Speed, Improves Cruise Speed, Improves Safety, Improves Efficiency for Free Divers, Improves Performance for Underwater Photographers, Improves Efficiency for Cave and Wreck Divers, Improves Accessibility and Efficiency for Student Divers, and Improved Accessibility to Injured and Disabled Divers. 

The Apollo Bio Fin Pro Metal's comes with a Set of Stainless Steel Fin Straps. These Durable, Coiled Spring Straps are extremely Rust and Breakage Resistant. The Spring Strap Automatically Adjusts to changing conditions; No Stopping to Tighten-Down a Loose Strap! The Straps have a Rugged Rubber Grip with Finger Loop that is Easy to Access, even with thick gloves. The Apollo Bio Fin is available in sizes Small, Medium, Large or X-Large.