

The three-time world champion put this interesting fin, featuring a polymer blade and originally designed for shallow-water spearfishing, through its paces. It also performed impressively during some of azzarri’s more demanding dives di
Renzo Mazzarri
Every season brings new equipment to test, but when it comes to fins, a proper assessment always takes time. First impressions can be positive, but it is only after numerous outings—during long days at sea, constantly changing conditions, different fishing techniques and ever-changing situations—that the real strengths, limitations and personality of one model compared with another begin to emerge.
The Cressi Gara Turbo Impulse fins accompanied me during the first weeks of summer, a period I consider one of the most fascinating times of the year. The water begins to warm up, prey behaviour changes, and the spearfisher inevitably adapts his approach. Early-morning outings, dedicated to searching for the first dentex of late spring and early summer, involved long, quiet finning sessions to reach the tops of offshore reefs, alternating shallow- and mid-depth hunting, movements between rocky areas and Posidonia meadows, and a few more demanding descents. It was precisely this variety of situations that allowed me to truly understand how these fins perform.
Born from the evolution of the Impulse project, they introduce a distinctive technical solution based on the undulating deformation of the blade. Cressi developed this concept to improve the elastic return during the fin stroke, increasing efficiency without sacrificing the fluidity of movement.
Naturally, beyond the design solutions themselves, what really matters to anyone who spends many hours at sea is understanding how a fin behaves during a normal outing. How much does it fatigue the legs? How does it respond when leaving the bottom? Does it maintain consistent thrust? Does it remain comfortable after four or five hours in the water? These are the questions I set out to answer during the test.
A Blade Unlike the Usual
Looking at the Gara Turbo Impulse, it immediately becomes clear that the design differs from traditional plastic models. The thin, lightweight blade is made from a special blend of elastomerized engineering polymers developed by Cressi and is distinguished by its characteristic undulating shape.
At the heart of the design is the “S” deformation, engineered to store energy during the loading phase and progressively release it during the following phase of the fin stroke. An interesting concept on paper, but, as is often the case, one that had to be tested directly in the sea.
I admit that I was quite curious at first. In our field, there is no shortage of innovative solutions that prove less effective than expected once they are actually put into the water. After several weeks of use, however, I had the distinct impression that this particular blade geometry really does contribute to making the fin stroke more continuous and natural, without ever feeling abrupt.
The side rails, made from an especially soft and flexible thermoplastic rubber, effectively follow the deformation of the blade, channeling the flow of water without restricting its movement. The design is completed by the dovetail-shaped blade tip and the 29-degree blade-to-foot-pocket angle, a solution that allows the blade to work from the very first kick in its optimal position.
The overall impression is of a design developed according to a precise construction philosophy, in which every element contributes to the fin’s final performance.
Comfort and Power Transmission
The Gara Modular foot pocket has by now become a Cressi benchmark. Its two-component construction provides a good balance between comfort and power transmission, while the self-adjusting system around the instep distributes pressure evenly, avoiding uncomfortable pressure points.
During the longer outings, this was the aspect I appreciated most. After several hours in the water, the fit remained comfortable and I never experienced discomfort or stiffness in my feet—a detail that is often underestimated but can make a major difference at the end of the day. Power transmission is direct and effective, allowing the blade to make good use of the kick without any noticeable loss of energy.
It is worth keeping in mind that most of the test took place during the first weeks of summer, when dives are generally made at greater depths than in winter. The days almost always began before dawn, with quiet finning sessions towards the chosen spots, followed by a succession of hunting positions and ambushes over reefs rising from the blue, where baitfish tend to gather in greater numbers and the food chain develops. The hope, of course, was to find a predator or two.
Out of curiosity, I also decided to use the fins during a few deeper dives while hunting in the blue. It is important to point out that this is not their natural field of use: a technopolymer blade cannot be compared, in terms of absolute performance, with a modern carbon blade specifically designed for deep diving. It would simply be an unfair comparison.
Even so, the Gara Turbo Impulse managed to surprise me. Thrust remains consistent, the fin stroke always feels natural, and the blade follows the movement without ever giving the impression of disrupting the rhythm. Even during some more demanding dives, I consistently felt a good reserve of power and reassuring control.
Where I appreciated this model most, however, was during the approach to the hunting spots and while moving from one ambush position to another. The natural feel of the kick allows you to maintain a relaxed pace, reducing muscular fatigue and preserving valuable energy for the most important moments of the day.
Directional control also proved to be very good in the presence of current.
At this point, there is still one test I am particularly curious to undertake: using them during the winter season. I am convinced that when shallow-water hunting, in the surf and in rough seas, these fins could express their characteristics even more effectively. They do not produce sharp noises when hitting rocks, they offer the right amount of flexibility, and they are well suited to the generally shallower depths encountered in these conditions.
Rather than wait that long, I took advantage of a couple of windy, rough-sea days to head into the inshore shallows. There was little to show for it in terms of catches, but I was able to recreate the typical conditions of shallow-water hunting, with current and surge.
And the verdict? The Gara Turbo Impulse passed with flying colours.
Maneuverable, responsive and free of dead spots, they handle these conditions remarkably well. A couple of firm kicks are enough to break free from the surge, and they deliver plenty of power when you need to accelerate your pace.
Final Thoughts
The Cressi Gara Turbo Impulse represents one of the most interesting interpretations of modern technopolymer fins. They do not attempt to imitate a carbon blade; instead, they offer their own philosophy, based on comfort, fluidity, efficiency and ease of use.
During these first weeks of use, I was particularly impressed by the natural feel of the kick and by the fins’ ability to support the spearfisher without causing excessive fatigue—qualities that become fundamental after several hours spent in the sea.
Anyone accustomed to carbon fins will inevitably notice a different response, especially during deeper dives. However, considering their intended purpose, the Gara Turbo Impulse deliver a high level of performance and have proven capable of handling, with remarkable ease, situations that go well beyond the traditional role of a technopolymer blade.

