Fins
  

TUSA SF-15 X-Pert Zoom Z3 Fin

 

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Over 5 years of research and development brought the highly regarded and best-selling SF-8 X-Pert Zoom split fin to market in 2003.  TUSA redefines the fin market again with the introduction of the SF-15 X-Pert Zoom Z3.  

The SF-15 further improves upon the performance, features and design of the SF-8 with the incorporation of 3 materials, 10% longer blade length, enhanced propeller-fin technology, reinforced blade rails and optimized blade scoops.  These new features along with TUSA's patented 27° Angled Blade Design and EZ strap buckle system make the SF-15 THE fin for divers.

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-15 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.

Three material design for increased performance compared to standard split fins
Patented 27° Angled Blade Design
Enhanced propeller-fin technology optimizes efficiency
Multi-compound foot pocket increases power transfer to the fin blade
Reinforced side-rails decrease blade separation increasing stability and kick-style versatility
Optimized blade scoops increase water channeling
Innovative hydrofoil design that produces forward motion (propulsion) with less effort
10% longer blade than SF-8 for enhanced propeller effect
TUSA patented EZ Strap and buckle system
Sizes: S, M, L (PP available in S, M only)

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