Designed with entry-level fly fisherfolks in mind, the RIO MainStream Trout WF Fly Line provides versatility and easy casting, and it comes at a price that won't break the bank. The powerful front taper gives you an improved presentation and turnover, meaning you'll see more action and ultimately catch more fish next time you head to the river.

  • Slightly heavier floating line casts easily and performs in a wide range of situations
  • Powerful front taper improves presentation and turnover
  • If you're buying a reel or spool and fly line, we'll be happy to rig it up for you, please give us a call at (855)-712-0513 for details
  • Reviews
  • Q & A

great line for the price

    I've had better lines, but for this value i think it does the trick

    Dont skimp on line

    • Familiarity: I've used it once or twice and have initial impressions

    All my reels have RIO lines on them. I bought this for one of my spare set ups and my initial impression is that it is weed wacker line.

    Great value line

    • Familiarity: I've used it several times

    No loop on the backing end, so practice up on your nail knots!
    this line preforms well for the price, casts smooth, and mends well. I have yet to catch on it, so its performance under pressure is still up in the air, but the line did end up sinking a bit on the first day of use.

    Good Choice

    • Familiarity: I've used it several times

    Great line--just getting started or have many fish-tales under your belt, this WF line is a good choice, good value, and the ice green color looks pretty awesome on the reel or in the air (if color matters...).

    Does this have a front loop?


    • Familiarity: I've used it several times

    Excellent value for reliable line.

    Good price, better quality.

      Excellent value for reliable line.

      Great Fly Line for the Price

      • Familiarity: I've used it several times

      I just entered the fly fishing world and was told you couldn't go wrong with this line for the price. I went with the 5wt Rio line and have been really happy with it so far!

      Good value

      • Familiarity: I've used it several times

      I've got a few of these, one as backup for my 5wt in case I break a line on a trip which as been known to happen. $40 is totally worth the piece of mind and better than sitting out part of a trip. I've also got a few 3wt versions of this on antique reels I don't fish day in day out, but use occasionally. I'm a fan of RIO and this line is solid value

      Good line

        This is a great all around trout line. This is a perfect line if you're just starting out and not sure what to get. It casts and mends well and you can't beat the price!

        Great line!

          If you're a beginner fishing with a bargain line, do yourself a favor and buy this. This line will instantly make you a better caster. Especially when trying to be accurate and delicate.

          New Rod, New Line

          • Familiarity: I've put it through the wringer

          I recently set up a new reel and needed some 3 wt line. I wasn't too worried about long-term quality so I decided to get a budget line. So far, I have had no issues with this line. In a 3 wt, I'm not making long casts or pulling in big fish. Just need a line to help put a fly down softly on the water. This one does the job.

          RIO x SNOQUALMIE

          RIO x SNOQUALMIE

          Awesome picture Natalie !!!

          I selected this image to feature on the Community Hub at the bottom of the homepage! Congrats on being amazingly GOATWORTHY !!

          Decent line

          • Familiarity: I've put it through the wringer

          If you're new to fishing, it will be fine. However, I found that after trying to cast anything more than about 20-25 feet of line, it wasn't very smooth. For short casting, it was great.

          For the price, you can't beat it. But I invested in the Rio Gold and was much happier. But also paid twice as much :-O

          Rio Fly Lines

          overview of Rio Trout Lines

          Great line, great value!

          • Familiarity: I've used it several times

          The RIO Mainstream line is a great value and a great line. Easy to cast, stays clean and is a solid line for the money!

          Great Line for the Price

            RIO makes great products and this fly line is no exception. Casts well, and stays clean even in dirty water. Worth the investment.