SKU: 41371421355

CETMA Composites Mantra Carbon Fin Blades

Sale price$238.48 Regular price$264.98
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Ships within 48 hours · Estimated delivery Jul 20 - Jul 25

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Description

CETMA Composites Mantra Carbon Fin BladesCETMA Composites Mantra Carbon Fin Blades These high end carbon blades are the result of Cetma Composites engineering approach to the development and manufacturing process of freediving and spearfishing fins, coupled with years of material studies and experience in the design of composite materials for the aerospace and automotive industries. 100% IM7 carbon fiber: Material used is 100 % Carbon Prepreg produced with hot melt impregnation system, using

CETMA Composites Mantra Carbon Fin Blades

 

These high end carbon blades are the result of Cetma Composites engineering approach to the development and manufacturing process of freediving and spearfishing fins, coupled with years of material studies and experience in the design of composite materials for the aerospace and automotive industries.
  • 100% IM7 carbon fiber: Material used is 100 % Carbon Prepreg produced with hot melt impregnation system, using a micro-toughened tetra-functional epoxy resin. 
  • 3D-Tech: Proprietary Technology, of CETMA COMPOSITES exclusive know-how, with high pressure, high temperature and high degree of applied vacuum, which lead to a component with 0% void level, without defects, with a uniform matrix/reinforcement ratio across the whole blade. 
  • FEM Design: MANTRA blades are optimized through an accurate Design by means of Finite Element Softwares (FEM). The Design through FEM software allows an optimized distribution of the stiffness, with the aim to obtain a deformation ensuring the maximum hydrodynamic efficiency.
  • Signature model: developed in collaboration with the world champion CWT bi fins Michele Giurgola.
  • DRS (Dynamic Resonance System) innovative and exclusive CETMA COMPOSITES system. DRS implies that MANTRA blades were designed to reach in resonance in a definite frequency of kick. Resonance phenomenon is well note physical phenomenon characterizing all the structures. Simplifying, when a structure is forced with a frequency close to its natural frequency the amplitude of vibration increase in a very efficiency way (low damping). Operating by distribution of the stiffness along the blade we “tuned” the blades to certain natural frequencies. So when the blade is driven, by kicking, with a certain frequencies range the user feeling is a very low effort with an outrageous thrust. This study is done using a laser vibrometer (LDV) to perform a modal analysis, which helps in a stiffness distribution design of the blade.
  • Available colors: White, Magenta, Gold.
  • Available stiffness: super soft (XS), soft (S), medium (M). 
  • Dimensions: Width 195 mm; Length from the bending angle 742 mm; bending angle 33 degrees.
  • Footpocket fitting: CETMA COMPOSITES, Mares and Pathos.
  • Water rail: CETMA COMPOSITES Water rails with variable height and high efficiency.
  • Warranty: 2 years on carbon parts; 5 years if fitted with CETMA COMPOSITES footpocket 
  • Prizes and awards: Italian Champion 2016 CWT bi-fins - 92 meters in 2 minutes and 55 seconds.
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 41371421355

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RA
Fort Morgan, US
★★★★★ 5
Great value
Color: Aqua, Style: 1-Inch
Perfect exercise mat. It is nice and thick, and comfortable to kneel and lay on. Can't comment on durability, but so far, so good. Recommended.
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Reviewed in the United States on May 14, 2026
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mocean
Natrona Heights, US
★★★★★ 5
Thick, soft, perfect for my service dog to lay on in restaurants, etc.
Color: Blue, Style: 1/2 Inch
I bought this for my service dog to lay on in restaurants, etc. It's super thick and soft. I cut it in half and I'm using the other half for my dog to lay on in the car. Excellent quality and I love the carry strap.
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Reviewed in the United States on June 7, 2026
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Rome
Natrona Heights, US
★★★★★ 4
Comfortable and thick mat that’s great for workouts at home
Color: Black, Style: 1/2 Inch, Color: Black, Style: 1/2 Inch
I picked up this Amazon Basics extra thick exercise mat for home workouts, and it’s been a solid addition. The thickness is the first thing you notice—it provides good cushioning, especially for exercises where you’re on your knees, elbows, or back. The surface has enough grip to keep you from slipping during most movements, whether you're doing stretching, core work, or basic workouts. It also stays in place pretty well on the floor without sliding around too much. The mat rolls out flat easily and comes with a strap, which makes it convenient to store or carry if needed. It’s lightweight enough to move around but still feels durable. It’s not a high-end studio mat, but for everyday workouts at home, it does exactly what you need it to do. Pros: • Extra thickness provides good cushioning • Comfortable for floor exercises • Lightweight and easy to store • Good value for the price Cons: • Slight compression over time with heavy use • Grip is good but not premium-level Overall, this is a great budget-friendly mat for home workouts, stretching, or basic fitness routines.
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Reviewed in the United States on March 17, 2026
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Karla Lara
New York, US
★★★★★ 5
Maximum joint comfort and durability
Color: Pink, Style: 1/2 Inch
I absolutely loved the color, and it offers incredible cushioning without sacrificing stability during balance poses. It is dense, doesn't lose its shape, and springs back instantly. The materials are high-quality, and it doesn't have that strong plastic smell that others often have. It is worth every penny for the comfort it provides.
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Reviewed in the United States on April 26, 2026
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Jo
Bozeman, US
★★★★★ 5
PLUSH! Fabulous yoga mat!
Color: Black, Style: 1/2 Inch
SO comfortable! It feels like a soft memory foam padding. I use it for several exercise classes and it is great for all of my needs! I love the strap it comes with to keep it rolled up in between classes and the ability to carry it anywhere.
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Reviewed in the United States on May 3, 2026

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