RIO's Fathom lines are a series of sinking lines designed specifically for the lake angler. Each line has a short, quick-loading head for minimizing the number of false casts, and for quick, easy distance, and a colour contrast between the head and the running line to easily show the line's loading point. In addition, each line is built with a Hang Marker that shows anglers when to stop stripping, and when to fish the hang, and features RIO's Density Compensation (except type 7) for complete fly control.

An intermediate sinking line with a completely clear head—essential for all lake anglers, with ultra-slick performance

• Short, east-casting head for minimum false casts and maximum distance
• Clear intermediate line—perfect for fishing in the first 2-6 feet of the water column
• Ultra-slick, coloured running line for the very best in distance
• Built with RIO's exceptionally slick, durable SlickCast coating