Description: Tusa X-Pert Zoom Fins Yellow The biggest rage in scuba fins today is the split fin technology patented by Natures Wing. Tusa improves that basic design with the introduction of the X-Pert Zoom split fin. Unlike traditional fins which create propulsion only through repulsive force- the SF-8 attains propulsion by creating a pressure differential in the water flow. Using a small bent-knee kick with a light motion- the X-Pert Zoom moves you forward faster- with less effort- than traditional blade fins. Split fins require less upper leg muscle effort than traditional fins- resulting in fewer cramps- less fatigue- and improved air consumption. The split fin is clearly the biggest innovation in fin technology in history- and eventually every diver will own a pair. Let your first pair be the Tusa SF-8 X-Pert Zoom fin. Style- speed- and energy conservation in a single package.