Rio InTouch Big Nasty 4D Sink Tip F/I/S3/S5

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RIO’S INTOUCH BIG NASTY SINK TIP line is the perfect sink tip for casting large streamers, with a front-loaded weight distribution that easily casts the biggest of flies. The line features RIO’s Multi Density Control – a seamless blend of four densities that ensures the smoothest transition of energy when casting, and the best depth control when fishing. It is made with an ultra-low stretch core for the maximum in sensitivity and performance. This is the easiest casting, fishiest sink tip line ever made.

The F/I/S3/S5 fishes the deepest in the line series – averaging between 4 and 8 feet down.

  • Front loaded to cast large flies with ease
  • Multi Density Control for maximum casting & fishing performance
  • Ultra-low stretch ConnectCore

WF6F/H/S3/S5, WF7F/H/S3/S5, WF8F/H/S3/S5, WF9F/H/S3/S5, WF10F/H/S3/S5

Sink Rate



Black/Dk. Gray/Lt. Gray/Orange

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