Cetma Mantra Pure Carbon Freediving Fin Blades

A premium pure carbon freediving fin giving you maximum power and efficiency

The Mantra represents the gold standard for high performance spearfishing and freediving fins. Ultra high performance, high efficiency, high durability & strength, low weight, high flexibility.

These fins are designed for divers who need the most efficient fin possible for spearfishing at any depth, swimming long distances on the surface and moving around on the bottom.

Whether your diving to 40+m to spearfish or freedive for competition, swimming 4k on the surface shooting bass in Cornwall, these are the best pure carbon fin on the market today and will give you the best performance with the lowest fatigue.

What Cetma have to say about these fins:

Mantra models are light and progressive fins, with high performance, suitable for spearfishing and sport freediving.

Mantra innovative fins, thanks to their extreme use flexibility, are the best-selling product by CETMA COMPOSITES.
In their different stiffnesses (Xsoft, Soft, Medium and Hard), they are suitable for different uses, hence for both sport freediving and spearfishing.
Thanks to the Dynamic Resonance System, these fins manage to maximize thrust by reducing fatigue: the feeling is that of soft fins with a powerful thrust.
The 33° bend angle has been designed to facilitate swimming on the surface even in the presence of strong currents.

Why Choose Cetma?

CETMA fins are produced with ZDF Excellence, a proprietary aerospace-derived manufacturing technology that guarantees extremely high structural quality and consistency.
The production process uses CETMA’s exclusive OOT, Technology (Out Of Autoclave process), a proprietary composite manufacturing method developed by CETMA Composites. This technology allows precise control of carbon fiber orientation, resin distribution and structural integrity, achieving a perfect carbon fiber / resin ratio with zero defects.
This process ensures:
• Maximum structural reliability
• Consistent flex characteristics
• High durability under load
• Optimal energy transfer during finning
All fins are 100% Made in Italy, designed and manufactured entirely by CETMA Composites. CETMA engineers also developed the DRS – Dynamic Resonance System, which allows the blade to enter natural resonance during the kicking cycle. The blade continues part of its movement naturally, reducing muscular fatigue and increasing propulsion efficiency.
For this reason, many top freediving athletes and competition record holders use CETMA fins.
All fins feature variable-height side rails, positioned only where needed to correctly channel water flow while allowing the blade to flex freely and react instantly.

Technical specifications

• Angle: 33°

• Dimensions: 71 × 20 cm

• Stiffness: SS / S / M / H

Characteristics

• Rigidity distribution also in the rear section

• Energy distributed across multiple muscle groups

• Uses the defalcata (kick-back effect) naturally

• Strong use of the resonance effect Recommended use

All types of spearfishing • Long sessions with reduced fatigue