This demonstration video discusses and shows the features of the Mares Volo Power Adjustable Strap Scuba Fins. The Volo Power Fins feature an OPB system for great efficiency which allows the blade to maintain an optimal angle throughout the kicking cycle, whereas traditional fins achieve this only during a small portion of the kicking cycle. OPB produces a constant thrust, which minimizes fatigue and produces fluid movement through the water. The Channel Thrust Technology maximizes the channeling of water and moves a much greater amount of water compared to the other fins of the same size. The result is greater thrusting power with the same amount of effort.