Performance Fins 4.5" Future Fins is the name and performance is our game. This series contains a variety of fins to be ridden either as a 2+1 or as single fins. These fins allow good release for turning, but with just enough tip for those long nose rides. Available Sizes: 4.5", 5.25", 6", 7", 7.5", 8.5", 9" Available Materials: Fiber Glass (red, blue, clear, smoke)