RIO Density Compensated sinking tip fly lines are designed with a balanced length of thick floating body so there is no hinge, or kick, during the casting stroke. Density compensation stops the problem of sinking tips or full sinking lines from sinking in a curve. With density compensation, the tip sinks at the same speed as the body, producing more strikes, precise depth control and better strike detection. These lines are available with 15 ft sinking tip and have a coldwater tungsten coating on a braided multifilament core. Length: 90 ft (27.4 m).

15 ft:
Type 3 WF4 F/S - WF9 F/S
Type 4 WF5 F/S - WF8 F/S
Type 6 WF6 F/S - WF10 F/S
Type 8 WF8 F/S - WF10 F/S