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The SF-8 X-Pert Zoom split fin is unlike traditional fins which create propulsion only through repulsive force, the SF-8 attains propulsion by creating a pressure differential in the water flow using Propeller-fin technology.

TUSA’s Angled Blade Design:
When using the standard traditional blade fin, with the leg completely extended, there remains an angle of 27° between the heel and the foot and the calf of the leg, causing a 10% loss of propulsion. Because the fin is angled below the body, during the kick phase, the body is pushed forward and down, instead of straight ahead.  With the SF-8 fin, that 27° angle has been designed into the fin.  This means that 100% of the energy expended during the kick phase is directed toward the propulsion of the diver.  To achieve maximum performance from this fin, use a small bent-knee kick with a light rhythm. This creates less strain on the leg muscles compared with traditional fins, reducing the diver’s fatigue and subsequent air consumption.


  • Propeller-fin technology provides the ultimate performance & comfort
  • Innovative hydrofoil design that produces forward motion (propulsion) with less effort
  • New age elastic material with ridged reinforced double layered construction
  • 27° angle for maximum efficiency
  • TUSA Patented easy-to-adjust strap features quick release buckles
  • Color: Black (HBK*), Cobalt Blue (CBL), Shark Silver (SS), Red (R), Fluorescent Yellow (FY)
  • Sizes: XS-S, M-ML, L-XL
  • HBK has a stiffer blade compound than standard SF-8.

Black (HBK), Cobalt Blue (CBL), Shark Silver (SS), Red (R), Fluorescent Yellow (FY)