CRESSI FROG FINS Cressi Frog Open Heel Fins are a classic in the Cressi range, which has been on the market for many years and has a huge number of appreciators in every corner of the planet. Great for Scuba Diving The Cressi Frog Fin is made with a skilful combination of a strong co-polymer and a soft elastomer, the latter used for the foot pocket, for the side stringers and for some inserts. The blade originates from the upper part of the foot pocket, with a 20% increase in useful surface area compared to a traditional fin of the same length. The foot pocket is computer designed and offers great comfort; it guarantees excellent transmission of the leg-fin thrust. The Cressi Frog Fin is heavier than the more recently designed equivalent Cressi Pro Light models. It's this feature that makes it agreeable to whoever uses very thick suits or watertight suits.