Rio Premier Grand Fly LineThe RIO Grand is a full line size heavier than the industry standard, and features more weight distributed towards the front of the line to easily load faster action fly rods. Built with a short head that is easy to cast, this line is also an excellent choice for novice casters who need a little more "feel" when casting. We have enhanced the performance of this great trout line by building it with SlickCast RIO's proprietary coating technology.