• DUALTONE is a system perfected by RIO that marks the sweet spot of a fly line by providing an obvious color change in the line at the sweet spot.

• FRONT & BACK WELDED LOOPS are neat, bulletproof loops welded on the end for fast rigging.

• EASY ID is RIO’s printed line marking system that allows anglers to quickly and easily identify each line.

THE SLICKEST LINES ON THE MARKET!

Rio's SlickCast lines are the slickest lines out there on the market. You will be stunned by the slickness after countless days on the water. Notice the extra distance that comes with ease, the extended drag-free drifts, SlickCast lines slip effortlessly through rod guides. And, as essential slickening agents constantly migrate to the exterior surface, you can trust your SlickCast line to be as slick next season as the day you bought it.

PERFORMANCE & DURABILITY!

You’ll start to recognize the durability on Day 25, you’ll appreciate it on Day 50, and you’ll be blown away by it on Day 80. SlickCast’s proprietary formulation is off the charts when tested for abrasion and cracking resistance—producing the toughest, most durable fly line coating in the world. You can count on your SlickCast line to outlast every other fly line you have ever fished.

LOWEST FRICTION!

Fly line slickness is the most important factor for getting distance and for feeding slack on drifts. Simply, the slicker a line is, the more effective and efficient you will fish due to easier distance and extended drag-free drifts.

TESTING METHOD – To test the fly line slickness, Rio weaves a sample through a series of chrome bars. One end is tied to a weight, and they pull the other end to start the line moving and maintain its motion. They measure the force it takes to start the line moving, as well as the force required to maintain motion. The higher the forces required the more friction the line has—not good for long casts and shooting line.

33% MORE FISHING TIME BEFORE CRACKING THAN THE NEXT BEST TECHNOLOGY

Fly lines crack over time and use. The more durable a fly line coating is, the longer a fly line will last before it cracks, and the more fishing time you get out of a line.

140% TOUGHER COATING THAN THE NEXT BEST TECHNOLOGY

As fly lines get used, the action of the line moving through rod guides gradually wears off (abrades) the surface of the coating. As abrasion appears on the coating, the line gets rougher and doesn’t shoot or float as well. The longer a line lasts before abrasion, the higher the line’s performance.