The FLOW are CNC milled G10 to precisely replicate the outline and foil that we set out ot achieve. This method is more expensive but allows us to manipulate the design more than traditional polyester fins. Compared to the E-WAVE the FLOW has less surface area via a narrower Chord in both the base and the tip. This provides a faster outline for use in heavier and faster waves. The narrow tip also allows for a clean bottom turn through moderate amounts of flex while letting the board slash its way through the top turn.