These are the Cressi Reaction Scuba Diving Open Heel Adjustable Fins Made In Italy

These fin feature:

• New generation technical polypropylene that is a lot more reactive, flexible and trim
• The blade is very long and has been designed specifically to get the best effort-propulsion ratio
• The blade runs right along the side of the foot and has a useful surface area of 20% more than traditional blades
• The blade gets progressively thinner towards the end to guarantee more extensive and regular bending when in stride
• Side frames are made from two separate materials that alternate and overlap in the different zones for a controlled flexibility structure in the various zones of the blade
• The computer-designed foot is made completely from soft elastomers for exceptionally comfortable and firm housing of the foot, to guarantee excellent transmission of the leg-fin effort
• The wide-soled foot makes it easy to remove the foot from the fin
• Foot provides excellent non-slip action, very useful when putting fins on in the dry and when departing from boats or from the shore
• Quick-release tilting buckles make it easy to find the perfect position for the strap on the heel
• A system to lock the buckles into place prevents them from accidentally unbuckling, even when the strap is unhooked

This is the perfect fin for modern divers, beginners or professionals; light, easy to use, not very tiring, but fins that can also provide excellent thrust, which makes it possible to safely deal with even the most critical underwater diving situations.