Captain Fin Co Creature 4.39" Fins - Captain Fin Creature 4.39"(11.15cm) 3 piece fin set. The Creature 4.39 fin sounds like a small fin but it has an extremely raked back design allowing for maximum down the line speed!! Great for those really fast point break waves. Works well for riders between 155lbs to around 195lbs. Slide these suckers in your favorite shredder and feel the speed!!