Sport diving & scubadiving bifins 640 mm length S glass fiber
Medium size sport diving and scubadiving bifins. Their fast activation combined with their power will bring you speed. Flexibility will be preferred when the distance increases. For a same stiffness index, a short blade will be more rigid than a longer one. These fins are therefore only available in 3 stiffnesses. S glass fiber provides a better resistance and improves durability. 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.
These fins are recommended for speed events where their power and velocity make a difference. To choose the right hardness, it is also important to take into account its size and level of practice. Compared to a plastic blade, glass fiber will give you better propulsion and less fatigue.
To choose well, use our help: 'which model and which stiffness for me?'.
PRECAUTIONS FOR USE :
Your fibreglass or carbon blade can break :
- If the fin is stuck (the end of the fin is stuck, all the weight is on the blade and it cannot bend) => Do not push off with the blade on the bottom, the side of the pool or on the bottom of the water
- If you jump into the water with the blade parallel to the water.
- 640 SERIES
- Pair of fins
- Area cm2
- Glass fiber