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Cetma Composites Mantra Carbon Fins

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Availability: In stock

Special Price: 425

list price: $472

Quick Overview

High quality Lab-Made Mantra carbon fins, featuring the revolutionary Dynamic Resonance System from Cetma Composites - developed and tested in collaboration with freediving world champion Michele Giurgola, who's signature is also featured on blades.

The Mantra blades are tuned to specific natural frequencies allowing the blades to resonate with each kick, providing outrageously efficient energy conversion with absolutely minimal effort.

The Mantra blades are designed with an increased blade angle of 33 degrees for easier surface swimming and variable blade rigidity (3-D Design) which maximizes energy conversion and propulsion efficiency, supplying the freediver with unmatched power and performance. Variable width blade rails allow higher stability and better handling underwater.
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Cetma Composites Mantra Carbon Fins
Cetma Composites Mantra Carbon Fins
Cetma Composites Mantra Carbon Fins
Cetma Composites Mantra Carbon Fins
Cetma Composites Mantra Carbon Fins
Cetma Composites Mantra Carbon Fins
Cetma Composites Mantra Carbon Blades
Cetma Composites Long Fins Bag
Spare Fin Rails Kit (4 pcs)
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Cetma Composites Mantra Carbon Fins
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list price:
$472
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Product Details

High quality Lab-Made Mantra carbon fins, featuring the revolutionary Dynamic Resonance System  from Cetma Composites.

The Mantra blades are tuned to specific natural frequencies which allow the blades to resonate with the freedivers kicks underwater, providing outrageously efficient energy conversion with absolutely minimal effort. These fins were developed and tested in collaboration with Michele Giurgola, who's signature is also featured on blades.

The Mantra blades are designed with an increased blade angle of 33 degrees for easier surface swimming and variable blade rigidity (3-D Design) which maximizes energy conversion and propulsion efficiency, supplying the freediver with unmatched power and performance.

Variable width blade rails allow higher stability and better handling underwater. Available in green and magenta.

These high end carbon fins are the result of Cetma Composites engineering approach to the development and manufacturing process of freediving fins, coupled with years of material studies and experience in the design of composite materials for the aerospace and automotive industries.

Blade Dimensions: ~ 87 x 19.5 cm / 34.3 x 7.7 inch

Product Videos
Brand:
Cetma Composites
Color:
Carbon / Gold
Sku:
Cetma Composites Mantra Carbon Fins
Warranty:
2 Years warranty for materials and craftsmanship / 5 Years warranty when choosing S-Wing footpockets
Shipping:
Worldwide shipping - calculated
Material:
Carbon
Url:

Product Questions

Do foot pockets run large or small compared to actual shoe size?

Our foot pocket sizing is true to actual foot size. For use with up to 3mm neoprene socks we advise selecting the foot pocket size which corresponds with your actual shoe size.

For use with thicker (5mm+) neoprene socks, we advise selecting one size larger than your actual shoe size.

To determine which foot pocket size is right for you, please refer to our universal shoe size conversion chart.

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How to correctly measure my foot length?

In order to correctly measure the length of your foot, please follow the measuring guide in the illustration below. Foot measurements should be made while standing on your feet on a flat surface.

Foot Length Measuring Guide

To determine which foot pocket size is right for you, please refer to our universal shoe size conversion chart.

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Customer Reviews

Best fins ever used, but ...
Product Rating
by Mr. 76
I love these Mantra soft blades and S-wing foot pockets. No cramps in the calves!

But I bought these based on the shoe size chart on the website. They arrived too big. So I thought, I'll keep these foot pockets for possible cold water diving. I can wear a sock. Freedivershop would have exchanged them out for no cost, except freight, which is significant between the US and Italy. I bought the next smaller size foot pocket, expecting that changing blades to foot pockets would be simple.

For some reason, the blades are GLUED in to the foot pocket by the manufacturer! (This is great if you never need to change out the blade/foot pocket.)

In answer to that, the FreediverShop sent me a link to a video that shows me how to install new blades into new foot pockets. Not helpful for removing. I requested assistance again and I was told that Cetma would have a technician prepare a video demo in a few days. A week later it did not arrive.

In the meantime, because I need to break them in before a trip in a few weeks, I removed them myself without guidance from the manufacturer. I used a utility knife, single edge razor and acetone. It takes about 1.5 hours per fin. Insertion of the blade to the new pocket was easy. I used a small amount of silicone sealant on the sides where the pocket meets the rails. The end result was that the original foot pocket is probably still usable, but there's some missing rubber on the inside.

In summary, I love the fins! In my case, at least, ordering a smaller size than my shoe size would have worked. At some time in the future if the foot pocket wore out, it would be simple to remove it, if destroying it would be OK.

Question to Cetma; Why do you glue them with permanent glue when the two screw installation would work fine? The benefit would be that a mildly handy customer could change them out without destroying the pocket.

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