Cressi Reaction Pro Diving Fins | 2021 | Blue The new Cressi Reaction Pro fins are light, comfy and generate immense amounts of speed in the water, the buckle-up version has met with full approval from divers. The frame is moulded in three different materials, according to the Cressi patented system that guarantees surprisingly smooth and powerful kicking. The blade is rather long, and has a differentiated thickness - thicker at the front end of the foot, it gets progressively thinner towards the end of the blade. The wide-soled foot is very comfortable and outstandingly enveloping thanks to the extensive use of elastomers. The soles are completely covered in thermo-rubber to give them an excellent grip on boat decks. These fins have been designed not just for swimming and free-diving, but also for scuba diving, where they will surprise you with their fantastic performance.