Freediving Fins for Spearfishing
In the world of freedive spearfishing there are a wide range of options when it comes to fins. Fins fall into three broad categories based on the type of material used in their construction. These three categories are Plastic, Composite Fiberglass, and Carbon Fiber. Each type of fin has its own benefits and drawbacks. The main differences between the fin blades comes down to their durability, efficiency in the water, and their cost.
Plastic Freediving Fins
Plastic fins are highly durable and inexpensive. Most freedives start out with a pair of plastic fins because of the cost. As they progress in the sport divers keep their plastic fins as a spare set in case their other fins become lost or damaged.
- 50 meters = 30-31 Kick Cycles
Composite fiberglass fins are the next step up from plastic fins. The benefit of composite fins is their efficiency compared to the plastic fins. Composite fins tend to cost more than plastic fins, are only slightly less durable. Composite fins tend to be approximately 20% more efficient in the water than plastic fins, which equates to less physical activity and longer or deeper dives.
- 50 meters = 24 Kick Cycles
Carbon Fiber fins are the best fins on the market in terms of efficacy. If you love freediving you will tend to end up with carbon fiber fins eventually. They are the most expensive type of fin. Within the realm of carbon fiber fins there are two types of fins: Reactive fins and Progressive fins. Reactive fins have more immediate traction in the water, which is beneficial if you are trying to keep a fish out of the reef or a wreck. Progressive fins take longer to efficiently move a diver through the water, but once they do they become significantly more efficient. Progressive carbon fiber fins tend to be preferred for competitive freedivers on a line. Reactive carbon fiber fins tend to be more popular for spearfishing.
- 50 meter = 15-18 Kick Cycles
It is important to remember that fins are to one piece of equipment that a diver can invest in that immediately translates to being better at freediving. No other piece of equipment can immediately result in greater depths and increased efficiency moving through the water.