Fin keepers for freediving – What benefits they provide

Fin keepers are very useful, yet one of the most neglected accessories that can make your freediving sessions more comfortable by solving the problem of loose foot pockets. This article explains the benefits of using rubber fin straps, moreover features the best ones.

Why do you need fin keepers?

Using fin keepers helps to hold your feet in the fins so you won’t kick out of them. Wearing these inexpensive rubber straps provides the diver with a simple solution to secure over-sized or loose fins, as well as helps to increase the performance by optimizing the energy transfer.

You may have perfectly fitting freediving fins, but due to seasonality, you need to change the thickness of your booties from time to time depending on the water temperature. Divers often face the problem that when wearing thinner socks, or no socks at all, the foot pockets become loose. Diving with too big fins causes not only discomfort (your kicks won’t be so powerful) but also may lead to dangerous situations (losing the fins in strong current or tough conditions). To solve these types of problems, instead of purchasing fins in different sizes, get a pair of fin keepers that will compensate the gap in your foot pockets

Rubber fin keepers on Cressi freediving fins

Another common issue is that the fins you wish to buy are good in length, but are too wide. However, some manufacturers offer freediving fins that are designed to fit narrow feet, but if you can’t get none of them, you can easily use rubber fin grippers to achieve a good fit. 

Benefits of using fin keepers

  • secure loose fins
  • prevent rubbing and sores
  • allows some flexibility regarding sizing
  • fins won’t come off in rough water
  • provide the diver with better energy transfer
  • increase performance
  • reduce noise and vibration

As you see, these simple and cheap accessories offering solution to various problems that may occur in relation with fins, so it is definitely wort to invest in them!

Tip: check out our how to choose fins for freediving guide for tips on how to choose a good fitting model!

How to use fin keepers?

Fin keepers are technically rubber straps that are very easy to use. Put on your socks and fins as you usually do, then place the keeper over your foot and around the heel part of the foot pocket. Move it around until you reach a tight, yet comfortable fit.

how to wear it? - correctly attached fin keepers

The best 3 fin keepers


These Riffe fin straps are made of the highest quality Japanese rubber that ensures durability and a secure fit. Get them if you struggle with over-sized foot pockets, and you will instantly notice that your kicks get powerful and diving becomes easier. This little piece of equipment is a must-have!


The Storm fin straps kit includes 2 tight-fitting, durable rubber straps that are designed to use wit full-foot fins. Place them over the foot pocket and enjoy the snug fit they provide! Use them while scuba or freediving, but they are beneficial also while snorkeling and surfing!

Scuba Choice

Scuba Choice is a leading dive gear manufacturer that supplies snorkelers, divers and freedivers with good quality gear. You won’t be disappointed in their fin straps! These stretchy, yet snug-fitting bands will keep your fins in place all the time for a comfortable water experience. For the best visibility, these Scuba Choice fin keepers come in yellow color.

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