Face it when you're cruising down a river or fishing in shallow mangroves you need a fin that won't get you caught up. With the FCS Paddleboard River Keel Tri Fin Set you are able to maneuver your paddleboard in very shallow depths. The FCS Paddleboard River Keel Tri Fin only sits a few inches into the water allowing for easier portage. Its long leading edge acts as a skid plate so any branches or rocks you run into will be absorbed by the fin. The FCS Paddleboard River Keel Tri Fin is also buoyant so if you do happen to lose it while in the rapids you can find it at the next eddy.