The Cressi Reaction Pro fin is a closed-foot fin, born from the evolution of deep apnea fins, but with a shorter blade, but made with very reactive materials, not in copolymer but in polypropylene of exceptional lightness and reactivity.
This material is combined with a comfortable thermo-rubber, used for the shoe, for the side members and for various inserts.
The blade originates on the upper side of the shoe, with an increase in the useful surface of 20% compared to traditional fins of similar length.
The excellent highly anatomical shoe, designed for the computer, guarantees perfect transmission of the forces leg-fin.
It is the perfect fin for apnea, since it guarantees an excellent propulsive thrust, without requiring the muscular commitment of long fins designed specifically for deep apnea and agonism.
Excellent also for snorkelling, swimming and scuba diving, where it is superior to the crawler fins.
The measurements are abundant, if you are undecided between the size + small and the one a little bigger you can safely opt for the + small