Dual System:
 Our Dual system fin has a smooth surface on the front  rough and matte on the back, this system takes advantage of the slippage in the finning surface thanks to its smooth surface. The rough rear area increases thrust, thanks to the roughness of the rear part, it prevents skidding during flapping, thus achieving greater efficiency.
  
 hardness
 The hardness measurements are indicative, a fisherman could vary to a lower hardness depending on the type of fishing, weighting or preference.
  
 Extra soft:
 Freedivers..........50-65kg
 Soft :  
 Freedivers..........60-75kg
 Middle:  
 Freedivers..........70-85kg
 Media:  
 Freedivers.......... 80-95kg
 Hard:  
 Freedivers..........90-105kg
  
  
 If you have any questions, contact us.