These shorter twin fins are ideal for freedivers who prefer frequency to amplitude. The shorter length makes them easy to handle, and turning is no longer a problem. For a same stiffness grade to a short blade will be more rigid than a longer one. These fins are therefore only available in 3 hardnesses.Thanks to the contribution of C5 carbon, bending's return of the blade is highly efficient . This pair of high performance and durable fins will share with you long spearfishing sessions. You can choose a branded closed-heel footpocket or a custom-made open-heel footpocket. This one frees the rotation of the ankle in all directions and thus increases the finning's amplitude and the efficiency thanks to a more precise foot positioning on the blade . Finally, it facilitates direction changes. It takes a little time to get used to it.
The 640 SERIES will be perfect for dynamic freediving in a 25 meters pool.The C5 carbon gives a lot of nervousness, for fast and precise movements. Due to their smaller size these fins are only available in 3 stiffnesses. For the same grade of stiffness, the 640’s blade is stiffer than a longer blade. To choose the right stiffness, adapted to your weight and your practice, use our help: 'which model for me?'.
Data sheet