Power Flex is a Pro Teck Fin with a medium core flex - center longboard fin style. The fin bends on turns and then springs back, creating forward thrust similar to a swim fin. The medium flex core and flexible trailing edge makes the board turn smooth and fluid, with continuous speed. Power Flex Fins are recommended for intermediate to professional surfers. You choose size 7" or 9".
Proteck fins are SOFT EDGE to protect you from fin cuts and injuries but you still getting the same performance or better.