COVID-19 Update: The Fly Fishers storefront location in Brookfield is now open with the following temporary hours: Monday - Friday 11:00 AM - 4:30 PM, Saturday 10:00 AM - 2:00 PM, Sunday - Closed. We're still in the full time shop fulfilling online orders. Orders are being shipped as quickly as possible with brief delays - we are experiencing vendor availability issues and delays from all brands.

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RIO InTouch Big Nasty 3D Sink Tip Fly Line - F/H/I

RIO InTouch Big Nasty 3D Sink Tip Fly Line - F/H/I
RIO InTouch Big Nasty 3D Sink Tip Fly Line - F/H/I
RIO InTouch Big Nasty 3D Sink Tip Fly Line - F/H/I Coil
RIO InTouch Big Nasty 3D Sink Tip Fly Line - F/H/I Taper
Have questions? Call us (414) 259-8100
Product Number:ITBNFHI
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    Business Hours
  • Monday - Closed
  • Tuesday - 10:00AM - 6:00PM
  • Wednesday - 10:00AM -6:00PM
  • Thursday - 10:00AM - 6:00PM
  • Friday - 10:00AM - 6:00PM
  • Saturday - 9:00AM - 4:00PM
  • Sunday - Closed

RIO InTouch Big Nasty 3D Sink Tip Fly Line

Bust out the big gnarly flies with the RIO InTouch Big Nasty fly fishing line. This 3 density fly line progressively sinks faster towards the front with RIO’s Multi Density Control design - this progression of densities makes the power transition when casting these lines smoother than standard sinking tip lines. Less clunky in the cast as well as keeping a straighter line towards your fly for faster strike detection and better hook sets. This floating/hover/intermediate version is best for the top 2 feet of the water column.  When you are fishing with big nasty flies it only makes sense to help them along with the nastiest of fly lines.

This weight forward fly line is designed to handle and cast your largest, heaviest flies with ease. The short and powerful front taper on this fly line will make casting big and nasty streamers easier compared to not so aggressive fly lines.  RIO Big Nasty fly fishing lines are heavier than the industry standard to not only help with large, wind-resistant flies but also more easily load modern, fast action fly fishing rods.  The ultra-low stretch ConnectCore will help make a more solid connection to your fly, increase sensitivity and feel and make hookups more solid.

  • Short, powerful front taper to cast large and heavy flies
  • Ultra-low stretch ConnectCore for maximum performance
  • Heavier than the industry standard to load easily
  • Supple, coldwater coating ensures no memory off the reel


  • ConnectCore
  • Extreme Slickness
  • Agent X


  • DualTone
  • Front Loop
  • Back Loop

RIO's InTouch Big Nasty 3D/4D Sink Tip from RIO Products on Vimeo.


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RIO Big Nasty Tippet Material
RIO Big Nasty Tippet BNASTYTIP $5.99
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RIO InTouch Big Nasty Fly Line ITBN $99.99