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De profundis

De profundis Tech Diving Fins

  • Play videoDe profundis Tech Diving Fins
  • De profundis Tech Diving Fins

De Profundis Tech Diving Fins

Product description De profundis Tech Diving Fins

One of the shortest fins of its kind, Techfin has an edge on the side designed for heightened maneuverability, making it popular among technical and advanced divers.

Made from 100% rubber coated with stainless steel strap.

Compact design for efficient mobility.

Equipped with dinamic edge for powerful thrusts.

High force fin with edges for maneuverability.

Do you love dive? Get your De profundis Tech Diving Fins and enjoy your leisure activities with the security and confidence which De profundis gives you. Don´t forget that we have an great range of Fins, masks and snorkels for all sizes and weather conditions. In order to give you the most effective dive models possible, most of our Open heel fins items have been designed in collaboration with the pros!

Features De profundis Tech Diving Fins

Recommended use

Customer reviews and questions (21)

Write a review about this product and earn CoINNs (existing customers only) coinns

Write a review and earn CoINNs

(existing customers only)

Nice rubber find at a reasonable price


A really nice fin, it's the same shape as posaidon's rubber fin

Excellent fins


Great fins for all types of diving (I am a recreational and professional diver). Strong, short and manageable in complex situations. The stainless steel spring makes it easy to put on and take off the fins. In size, I ordered an XL with a 42 foot. I use them with a 3mm neoprene sock and a 3mm or 5mm sole boot (more comfortable with the 5mm ones). Good service and good product.

Great drysuit boot


XXL fits nicely on a 45 EU drysuit boot. It also fits good on rockboots.



What type of buoyancy do they have? Positive, negative or neutral? Thank you!

our experts answer

Hello! they have negatif buoyancy. Thanks for your question!

Fins - recreational and technical


Super fins. They are suitable for technical and recreational diving. Not too heavy and not too hard, but it drives it. It is short so it is suitable for diving in wrecks and caves.

Fins and ereader


Made 2 orders that were in stock. Later it turns out that only the fins were present. I wanted to have an alternative. I indicated this immediately after the email. But I had to immediately pay shipping costs for that, even though everything was ordered in one go. I then suggested that they could only pay back all the costs and that I wouldn't buy anything. However, there was a very late and ridiculous response to my email. So I received my fins, albeit at a different pick-up point than I requested, which meant that I had to take the bus there, while my point was within walking distance. I have heard nothing more about the other item, nothing about the refund of the amount ... In short, the fins are of good quality, the service sucks and in my opinion it is so easy to make money. First have an order paid, and then no longer respond. This is a large amount for me. If this is not resolved I would advise everyone to stop working with the ... INN group.

Check the size chart.


Great Fins But make sure you buy a bigger size, I am a size 8.5 us shoe and had to get size XL

is this price for a single fin or pair?


just checking.

our experts answer

Hello! it is sold by pair. Thanks for your question!

Technical fins


Very good quality and design, the only thing that cuts a little long, which would be the least, but very wide and move a little laterally.

Jet fins - de profundis techfin


Super fins. Very good quality. They are suitable for recreational and technical diving. Short, not too heavy, manoeuvrable and give a good drive. You can dive in current and in wrecks.

Excellent fin at better price


This is the same fin as several more expencive brands, like Poseidon (they literally just put a different logotype on the same fin). The metal spring is a huge improvement from older jet fins, and these have a very practical loop in the back of the strap.

Fin fins


They arrived on time, good fit and selected size



They arrived at the set time. The truth is that I have made several orders with this company and the deliveries are very fast. The fins are very good, we'll see when you try them in the water.

My best fins


Fine fins for good money? This is the right choice!



The perfect price-performance ratio. Fast delivery.

Super jet fins


Super jet fins. Hard enough to give the power to move. Short enough to be a perfect dive in wracks and caves. Very good quality.

Super jet fins


Super jet fins. Hard enough to give the power to move. Short enough to be a perfect dive in wracks and caves. Very good quality.



Fast shipping happy with price and quality

Weight & Buoyancy


Hi! Could you please tell me the weight (in gram) & the buoyancy (neutral/negative) of these fins? Was looking at size L... Thanks!

our experts answer

Hello! it is 1.4 kg each and they are negative buoyancy. Thanks for your question!

How much do they weight?


Hello, i would like to know how much do they weight? in size XL. and if size XL is good for 28.5cm / 44-45 thanks

our experts answer

Hello! they weight 900 g each unit. And the XL corresponds to EU 41-43 sizes, it seams that the XXL will be the right size for you! thanks for your question!



May I know what is the bouyancy of this fin? Is it negative or positive?

our experts answer

Hello! it is negative buoyancy. It is 100% rubber coated, popular among technical and advanced divers. Thanks for your question!

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