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Your cart is empty.RIO’s Mainstream saltwater fly lines have been developed to meet the overall needs of the average and novice fly fisher, and are designed to optimize rod performance with slightly heavier and shorter head lengths. Every Mainstream line undergoes the same rigorous production processes and quality control standards as all RIO fly lines, and is made in RIO’s Idaho manufacturing facility. Each saltwater line is built with a hard, saltwater coating for the best in performance.
Dave Johnson
Reviewed in the United States on February 21, 2025
Normally, I'm a big fan of Rio products. I attempted to use a nail not to connect the backing to the fly line and to connect a perfection loop leader section to the business end. The fly line squeezes and comes apart. See picture. I attempted to create the same knot multiple times and even tried a few different knot strategies, like using a perfection loop. All failed. Garbage.
Cole
Reviewed in the United States on June 7, 2024
Love this stuff, it's so smooth and was perfect for me fishing on the beach. I'll be buy this stuff again for whenever I get another saltwater fly rod set up.
Francisco Javier Colunga
Reviewed in Mexico on May 21, 2023
Es la segunda ocasión que adquiero esta línea económica; ya llevo más de 5 años con la primer linea (wf9f) y me ha resultado bastante buena, obvio, con sus respectivos cuidados, no sé ha deteriorado en lo más mínimo, ha pesar de ser de la gama económica, es una excelente línea de pesca, al menos para mi!
gard
Reviewed in the United States on October 22, 2022
I was able to shoot out further than I have ever cast before. I will be buying more for my other reels.
Justine
Reviewed in Canada on February 14, 2020
Matched with an Orvis Recon 8wt.It cast well in mildly windy conditions fishing on flats and lagoons in Belize. You can't go wrong for that price! (Paid 55$ or so)Caught bonefish, snappers, baby tarpon on #4-6-8 and even 1/0 flyes.
d. french
Reviewed in the United States on March 13, 2018
Great fly line , very durable , price is right ....I put this line on all my 4 salt water reels . this line will last, just rinse in warm water after every use .
desertotter
Reviewed in the United States on June 27, 2016
This line has performed great. Unfortunately I have only been able to use it on one trip(finances). Throughout my trip, it was flawless. It stood up to every fish that wanted it. I highly recommend and it is a great price. Rio performs when you need it the most.
Cascadian Outdoors & Tech
Reviewed in the United States on April 4, 2016
I am a mid-level fly fisherman with little to no prior saltwater experience. I have casted an 8wt rod many times for salmon and steelhead in the Pacific Northwest. I purchased this Rio line to take to Belize to chase bonefish, permit, and other saltwater species. The majority of the week I was there it was pretty breezy. This line cut right through it and I was amazed at my own ability to make long accurate casts with it. I tried some other more expensive lines that a guide had on his boat and I feel that this Mainstream line casts just as good or better than most of them. It has a punchy weight forward taper that helps cut through wind and turn over larger flies. It even handled a wire leader and large baitfish pattern fly for barracudas with no problem. I also really like the light blue color of the line!
Chip Doty
Reviewed in the United States on May 11, 2015
purchased this line in 8wt to take to Belize to fish the flats as I needed a "tropical" rated line for the warmer waters there. I didn't wanna spend $100 on a premium tropical line as I would likely not use it much after this trip. The price for performance was a good balance, although there were times during the trip I had wished I ponied up for a better line. After fishing it for a while it would soften and then tangled fairly easily. A few times the slack line in the boat would knot from softening in the hot Belize sun. There were a couple of times I missed shots at fish from undoing tangles. It was a bit frustrating. It shoots fairly well though as long as you have good technique, and when the winds cooperated, I could shoot pretty much the entire line if needed. The winds on the flats in Belize however can often be brutal, and I found myself often wanting a bit heavier of a shooting head to punch through the wind better.In spite of the couple of performance downfalls on this line, I was able to land many bonefish throughout my trip, and even landed my first permit!Not a bad line for the price, but definitely better performing lines out there for tougher conditions. Will probably use this line for hitting local freshwater ponds this summer for bass and carp and will likely not have any issues for this purpose, but when I take another trip to the tropics, I will upgrade to a premium line.
devils fan
Reviewed in the United States on March 29, 2015
WOW! got this for my tfo pro series 2 ...7wt and casts like a dream! loads the fast action rod like a charm and is smooth as silk. and just ordered an 8wt line for the other rods. love this line. ( and this is based on my first 2 casts!)update.. added the 8 wt line to an okuma crisium 7/8 wt rod and can cast to the backing with ease. line lands smooth and straight. just need rio to make this line in a 5 wt and a 6wt!
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