This demonstration video discusses and shows the features of the Cressi Reaction Adjustable Strap Fins. The Fins offer maximum thrust with minimum amount of force. They also provide more speed and power than traditional fins. This creates less strain on the leg muscles reducing the diver´s fatigue and subsequent air consumption. The Cressi Reaction Adjustable Strap Fins have 20% more surface area than traditional blade fins. Adjusting the fins is very easy with the Quick release, quick-adjust buckle.