Beuchat Mundial Sport Fin

The Polypropylene blade is a great all round fin.  

Using a slightly more flexible blade than the Competition fin, the Mundial Sport still provides excellent performance using three material technologies. The Mundial Sport includes all the features of the Competition but creates less stress on your muscles and ankle joints.
The ultra soft closed foot pocket means that you can spend hours in the water and is ideal for Apnea training and competition or Spearfishing.
Blades are interchangeable so you can change blades or upgrade them as your freediving (or budget) improves.