Cressi Pro Light FinsPro Light Fins A highly advanced design for this fin that is moulded from two materials with very different characteristics: a strong polypropylene for the blade and soft elastomers (thermo rubber) for the foot and protective inserts. The result is an extremely light and well balanced fin, of average size, with surprising reaction time and a formidable thrust. The side stringers that extend all along the blade and two flaps situated along the end of