In 2014 catalog, Salvimar has enriched its line of spearfishing fins introducing the brand new NEXT. These fins with mimetic interchangeable blades are made of polypropylene.

This product is not a real novelty from the conceptual point of view since  Omer / Sporasub were the first to market it. By the way it is undeniable that the end result is completely different, so let’s take a closer look at it.


The blade as mentioned earlier is made of polypropylene (a material known for its high resistance to mechanical stress), just like many other fins with the only exception that Salvimar worked on its composition in order to make it softer and reactive.


On both surfaces there is a seabed picture printed with the IML - in mold labeling technique ( the same used by Omer / Sporasub). That is a process consisting in printing a photo/drawing on a thin film made of the same material used for the blade that is subsequently melted in the mold with the rest of the blade. This operation turns the print into an integrant part of the fin itself and not into an application lying on the surface. This produces mainly two advantages: firstly, the print is more resistant to scratches and secondly it doesn’t affect the mechanical properties of the material and as a consequence it doesn’t affect the overall performance of the product. Finally, it should be noted that Salvimar used the same pattern to produce the new wetsuit (also called NEXT) which allows the spearo to have a total and uniform camouflage.


The footpockets are made of thermoplastic instead of thermo rubber. This material is not keen to have "shape memory", that means it does not tend to "remember" the shape of the foot, but it also ensures a high level of comfort. Salvimar has manipulated the properties of this material to make it softer and obtain a product that accompanies the action of the blade without influencing it. The combination of soft blade and soft footpocket makes swimming extremely pleasant especially over long distances.



As you can see from photos and videos attached, in comparison to the others made of the same material the fin NEXT responds with great flexibility and responsiveness. The bending of the blade has its fulcrum in fact very close to the foot, while those of other brands have their fulcrum at about half of the length. This difference is mainly the result of the influence that the water rails have on the action of the blade.


In the attached video we tried to conduct an empirical experiment in which we flexed different blades with the same force (traction was mild, made with only two fingers) up to the point where they started to oppose normal mechanical resistance. By this test it is clear that beyond the intrinsic properties of the blade the limit of the competitor fins is represented by the rigidity of the water rails which strongly affect the bending of the blade. In addition to the bending test this is far evident when we try to vertically shake them. The SALVIMAR NEXT are the only ones able to flex up to the curvature under the footpocket.


I therefore believe that it is a product particularly suitable for inshore spearfishing because it is a type of fishing in which you swim for longer time and in which camouflage plays a crucial importance. Moreover their price (in line with the market average and slightly higher than the one of non-mimetic blades) makes purchasing them definitely advantageous and convenient.






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