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
Brand:
Cetma Composites
Color:
Carbon / Gold
Sku:
Cetma Composites Mantra Carbon Fins
Warranty:
5 Years warranty for carbon parts; 2 Years warranty for foot pockets
Shipping:
Worldwide shipping - calculated
Material:
Carbon
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Product Questions
- How to correctly measure my foot length for s-WING foot pockets?
- How to correctly measure my foot length for Mares/Pathos foot pockets?
Customer Reviews
Exellent!!
I use my new cetma from day number 1 when I got them and I am very happy with them!!! Recommended !!!
Great fins and amazing service
Thank you freediver shop team for your amazing customer service. I ordered fins which were big, I managed to return them and get the news in ideal time. Finning with Cetma fins is like driving lamorghini :)
great fins
nice angle, just great fins
Met a great product
Cetma Mantra Longfins are wonderful. The bends and resilience are great and they move forward as I want. There is no fatigue building up on the legs. I can explore the ocean with these long fins. Thanks to the friendly and excellent staff, I received a good product. I hope you have a good meeting next time.
Quick and light
Light and powerfull, allowing to quickly move direcly where I want. Thanks a lot for the great fins.
Nice Fins
Nice Fins
Great!!
All good. Everything arrived in good time and in perfect condition. I love my mantras!
Great product and service from freedivershop.
Great product and service from freedivershop.
Flawless
Everything I expected and more. Big step in energy conservation and the foot pockets fit like a glove.
Best fins ever used, but ...
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.
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.
