Features:
- Three material design for increased performance compared to standard split
fins.
- Patented 27 degree 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 and buckle system.
Description:
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 degree 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 degrees 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 degree 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. TUSA developed a robot that can
replicate the kick-cycle and movement of a human's leg. The robot is able to
mimic the motion of a human exactly and relay accurate data. TUSA has been able
to analyze the performance of the fins under several conditions. The robot is
able to simulate swimming through the water using kick variations, such as a
large scissor kick with a slow repetition and vice versa. Using the latest
technology, this robot measures the energy expended during the kick and the
propulsive force that is created using that energy. 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.
Size Chart:
Size |
Japan |
USA |
EUR |
L-XL |
28-32 |
10-14 |
44-50 |
M |
26-28 |
7-10 |
40-44 |
S |
24-26 |
5-7 |
38-40 |
Available Options:
Size: |
| Color: |
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