Navigator Flipfins Float Tube Fins - All Black - X-Large 11/14 Patented Amphibian Flipfin system allows fisherman to easily move on land and in water Ultra-light weight and neutrally buoyant Blade's design offers the unbeatable performance and efficiency with minimum effort Large, comfortable foot pocket designed to fit a wide range of boots and waders Tested and endorsed by professional river guides and fishermen. Made in the USA.