Futures Rasta HC Keel VF Twin Surfboard Fins - PurpleThe Rasta Keel was designed by Australian free surfing icon Dave Rastovich, as he developed his own refinements to the classic keel design. Rasta is known for riding alternative boards and this is his go to fin for down the line speed in any twin fin that suits a keel fin. Features: Template Category Keel (speed control, drive, trim) Construction Honeycomb Size Large Twin