Cressi Reaction EBS Fins Blue

Cressi Reaction EBS Fins

Produced with the exclusive injection system of 3 materials patented by Cressi-sub, it completely meets tendencies of modern diving with moderate dimensions and weight, and an excellent combination between resistance, power, comfort and aesthetics. The main basis of the structure is the using of propylene as an excellent mechanic efficiency material.

Materials

The combination of 3 different materials guarantees the optimization of the requirements in every area of the fin:

• Main propylene body: this material, inherited from apnea fins, has as main feature the extremely rapid energy transmission applied and its great structural rigidity. It is applied on the blade and on the internal sandwich sole area. It is really nervous and reactive and facilitates an effective and agile flutter. It has a relationship effort-efficiency clearly superior to traditional materials (natural or thermoplastic rubber, polyurethane, EVA). It also has a great resistance to breaks to the point that Cressi guarantees it lifelong to a sportive usage.

• Flexible elastomer: it’s applied on the foot pocket and on areas that require flexibility and elasticity, because that influences the diver’s comfort (on the foot pocket’s forefoot, the sole’s interior and the instep area that is in contact with the anckle). It’s also applied on areas that require anti-slip capacity: on the sole (only the floor contact area) and on the blade sides. The fusion of both materials is produced at molecular level and its solidity is guaranteed lifelong to a sportive usage.

• Compact elastomer: it’s flexible but not elastic. It’s applied on areas that require a rubber composition, anti-slip but strong and of great resistance (on the longitudinal ribs, foot pocket’s sole and foot’s head strap). This material links the energy transmission critical point (the instep) with the nerves in a single piece, avoiding the usual energy loss through extremely flexible components of the foot pocket that produce a heavy and slow flutter that fatigues the instep.

Technical features

The structure, studied to this new version of the blade basis material, pretends to combine a great solidity with a good water channeling, a protection on the side nerves and a soft forefoot to obtain a comfortable flutter and less erosion due to accidental contact with the sea floor. Furthermore, it uses several technologies common to all other Cressi models:

• “Foot pocket-under-blade design”: The blade arises from the superior part of the foot pocket, linking solidly the fin to the foot and transmitting all the generated effort while flapping without energy loss through soft areas. This version allows channeling the water from the ankle to the blade’s end, which is different from traditional models, in which the foot pocket doesn’t help to improve. Besides improving the flapping direction, this design provides features between 10% and 15% higher than other similar models on the market.

• Double side nerves, alternating to obtain a perfectly controlled structure and flexion.

• Decreasing blade side thickness “spina di pesce” to improve the flapping direction and achieve a greater inertia from fin’s end.

• Reinforced foot pocket on the superior area through an extra thickness and on the sides through two extensions in polypropylene from the blade to avoid the energy dispersion in the process of transmission from the foot to the blade.

• Foot pocket with three different volumes, with narrow central area to maintain the foot firmly fixed inside and to make direct and precise the effort transmission foot-foot pocket-blade.

• 360º fast adjustment tilting buckles. They allow the ideal automatic strap positioning during the flapping. A brand new buckle blocking system makes impossible the usual accidental female part release.