SpearPro Evolution Plastic Fin - Single Blade - Made by C4

To achieve softness, high elastic return and strong breakage resistance, the design and material of the blade are very important features. We have therefore selected and tested a multitude of polymers and we have finally chosen a medium/soft hardness compound suitable for both spearfishing and freediving. This choice guarantees extremely high performance and resistance 

The SpearPro Evolution blades are by far among the lightest fins with long polymer blades. The weight is less than 1300 grams per pair