Rio Grand Fly Lines are designed for modern, fast-action fly rods. The line weight has been shifted forward by making the head shorter and extra dense. The weight distribution of the Rio Grand Lines with Rio's MaxCast Technology enables the fly fisherman to load the rod more efficiently. This enables the angler to utilized the speed of today's extra fast fly rods. The Rio Grand Fly Line coating repels water for higher floatation giving the fisherman the ability for longer casts. All the features of Rio Grand Fly Lines make this the fly line of choice for modern, fast action fly rods because of their durability and castability.