Reaction EBS yellow

Cressi is most technically advanced fin, the Reaction uses a completely new polypropylene blade material that is more reactive, flexible and trim than previous designs.

The longer blade efficiently transfers energy from the computer_designed foot pocket, and like other Cressi fins, the blade extends from the top of the foot pocket to maximize its effective surface area for more thrust.
Cressi has developed this special strap to meet the needs of the most demanding divers, who need a comfortable fastening for their foot but one that is still practical and manageable.

Its special amply sized slot makes it very easy to put on, even when wearing thick gloves or three_fingered gloves for winter water.
The wrapping section is highly flexible, making adjustments unnecessary, and as a result it is much easier to get all your equipment right in the first few meters of your descent and the fin stays in place against your foot despite the increase in hydrostatic pressure.