RK3 HD Fins for Experienced Divers

About this item

• Produces Stiffer Blade, Providing Additional Power-In Heavy Currents or Surf
• Stiffer & Heavier: Ideal Fin for Dry Suit Diving
• Denser Mixture Causes It to Sink
• Designed-In Collaboration w/US Military
• Higher Density Material than Standard RK3