Choosing the right fin size is critical to comfort and performance when diving, whether snorkeling, diving, spearfishing, or freediving. The wrong size can lead not only to discomfort but also to the loss of fins while swimming. Here are some recommendations to help you make the right choice.
Fins for snorkeling and swimming pool
These fins are designed to be worn directly on the bare foot and have a closed heel for better support. When choosing the size of these fins, the main criterion is the size of your feet. If your foot size is, for example, 40, then size 40/41 would be suitable for models with a closed heel. Open heel fins are sized in a small range, such as 38-41, providing a more flexible fit.
Diving fins
For diving, fins are usually worn over neoprene boots, which requires special attention to sizing. The galoshes of the fins are sized to include a neoprene boot, so the size you choose should be based on your normal foot size. For example, with a foot size of 42-43, fins of size 42/43 are suitable.
Fins for spearfishing and freediving
Choosing a fin size for these disciplines depends on the thickness of the neoprene sock you plan to use and the water temperature. Thicker socks require choosing fins several sizes larger to ensure comfort and swimming performance.
- 3mm sock - add 1 size to your normal foot size.
- 5 mm sock – add 2 sizes.
- 7 mm sock – add 3 sizes.
- 9mm toe – add 4 sizes.
- 10mm toe – add 5 sizes.
For example, if your foot size is 42 and you are using a 5mm sock, you should choose fins that are size 43/44. For a sock with a thickness of 7 mm, size 45/46 is suitable.
The importance of making the right choice
Choosing the right size of fins not only increases comfort and convenience when swimming, but also ensures safety by preventing the risk of losing fins in the water. Remember to try your fins on with the type of socks you plan to use to ensure the best fit.
If you are looking for quality fins , take a look at our Marlin store. We offer a wide selection of fins for all types of underwater activities, helping you find the perfect pair for your underwater adventures.
