Rio Line

About coatings and cores in RIO fly lines
There isn't a coating or core perfect for all conditions. A coldwater fly line is excellent for trout, salmon, steelhead or stripers when water or air temperatures are less than 65 degrees. The coldwater fly line is formed on a nylon multifilament braid with a soft, pliable, self-lubricating coating that has no memory and stays pliable. However, as air or water warms up, a soft coating/braid will tend to loose its dynamic loop energy and start to sag. In really hot, muggy or humid fishing situations, RIO's tropical saltwater fly lines take over with single strand monofilament and braided monofilament cores and stiff coatings. All fly lines are manufactured by RIO at our Idaho facility.


SlickShooter™ Process
For over three years, RIO's R&D Department has been further evolving RIO's fly line manufacturing process and, as a result, the company is proud to announce the introduction of a significant manufacturing development. All of RIO's floating lines (with the exception of the MainStream series) are now produced by the new SlickShooter Process for super slick, incredibly smooth fly lines. The SlickShooter Process is a combination of unique chemistry and manufacturing protocols making fly lines that shoot line further and perform better than ever when fishing. The added advantages of our SlickShooter Process are the self-lubricating, dirt-resistant, durable coatings that result in a longer lasting fly line that retains its slickness even after other brands of fly lines have lost theirs.