Fly Lines and Backing

Can’t decide what to fish for? Our AirCel general-purpose floating line is a simple, no-frills, weight-forward floating fly line perfect for throwing dry flies, nymphs, and streamers to trout, bass, or panfish in streams, rivers, or lakes. It may not cost Read more

For years, the gold standard in the Scientific Anglers lineup was the GPX taper. From tossing small dries to slinging huge streamers, the GPX could do it all. But all good things must come to an end. Built a half-size heavy, the MPX taper starts where the Read more

RIO’s Technical Euro Nymph line has all the assets for the modern nymph angler. Built on a monofilament core that creates a stiff, slick line for quick feeding and less line sag between the rod guides, and an ultra-thin diameter to maximize sensitivity, a Read more

Some fish are afraid of their own shadow. Others have seen every fly known to man. So when you're up against the absolute pickiest of eaters, it's time to get technical. Read more

With a taper born from hundreds upon hundreds of hours of testing on literally dozens of different rods, the Universal Taper serves the dry fly angler, the nymph fisherman and the streamer chucker - all with equal mastery. Read more

Let’s be honest. No one will ever turn down a little extra help with their cast. Luckily, the Frequency Boost, built a half-size heavy, provides just that. This general purpose floating fly line loads quickly, turns over large dries, nymph rigs, and strea Read more

Here’s an idea: instead of spending $100 on a trout line, pick up a Frequency Trout fly line and use the rest on your next drive-all-night road trip. The Trout taper features a versatile, mid-length head ideal for delicate dries; however, it also provides Read more

The RIO Gold has a special taper design that gives incredible loop stability at distance, a unique profile that allows a rod to load at close range and a front taper that delivers perfect presentation of flies between sizes #22 and #2. The Rio Gold is the Read more

Exceptionally POWERFUL, EASY CASTING, line built for maximum distance, with ultra-low stretch performance.


Ultra-low stretch ConnectCore for maximum performance
Front loaded to cast large flies with ease
Designed for easy distance
XS Technology for a su Read more

RIO’s Elite Technical Trout line features a long, fine front taper for the lightest of presentations and delicacy and is the ideal choice of line when fishing dry flies, nymphs, soft hackles and emergers to tricky eaters at distance. The line has a long h Read more

Improved for 2020!! The 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 Read more