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Winner IFTD 2019! Scientific Anglers Amplitude Smooth Infinity Fly Line for ALL Freshwater Species
The Amplitude Smooth Series adds revolutionary AST Plus slickness to provide increased durability and slickness like a smooth traditional line. The AST Plus is mixed directly into the coating. Each line is built with three colors to identify for quick and easy rigging. SA Amplitude Smooth lines are simply the finest smooth fly lines in the world and are available in a number of freshwater and saltwater specific tapers.
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Customer Reviews
5.0 Based on 15 Reviews
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A
28 February 2025
Adam
United States
I recommend this product
Most versatile SA Line
The Infinity taper is my favorite taper from SA. Half size heavy to load faster rods, long belly for easy mends, and a somewhat aggressive head to turn over larger flies. For hopper-dropper setups or nymphs this line is hard to beat. The Amplitude Smooth coating has held up well over several seasons, having come from Rio lines that were not nearly as durable. Great line, easily worth the $
GJ
17 January 2025
Gregory J.
United States
I recommend this product
Love SA
Favorite line for Rivers and drys. It just performs!
J5
22 July 2023
JGB 5.
United States
I recommend this product
Scientific Anglers Amplitude Smooth Infinity Fly Line
Gabe provided expert advice and was very patient walking me through line options for my Winston Super 10 5WT. Gabe dialed me in with the Scientific Anglers Amplitude Smooth Infinity Fly Line. Great call - I’m happy! Thank you Gabe!
RR
15 June 2023
ROLAND R.
Australia
I recommend this product
Excellent
This line does everything I needed it to do.
RR
09 June 2023
ROLAND R.
Australia
I recommend this product
Excellent
Excellent product
MB
05 January 2023
Michael B.
Australia
I recommend this product
Shoots lasers
This line is the benchmark. Put it on any rod and it will make it sing.
BK
27 October 2022
Benjamin K.
United States
I recommend this product
Incredibly Durable and High Performing
Stellar line for all modern disciplines. Pairs well with my Centric 6wt 9FT
A
14 September 2022
Anonymous
United States
I recommend this product
Fantastic
Great line. I would recommend it to anyone looking for a solid all around line.
MN
15 May 2022
Michael N.
United States
I recommend this product
Great all purpose line for faster rods
I change lines often based on the type of fishing I plan to do. Generally it’s SA lines, either Trout taper or MPX. This line is an improvement on both those tapers for my Sage One - loads in close but has a long rear taper for extending your cast.
A
04 May 2022
Anonymous
United States
Best all around fly line
I just bought another. If they ever discontinue this line I’ll be bummed!
A
04 April 2022
Anonymous
United States
A new classic line from SA
My favorite line ever. I’ve bought several back ups in case they ever discontinue it.
JS
29 December 2021
jorge s.
United States
I recommend this product
Best line period
Just love the way it feels and slides through the guides
A
04 December 2021
Anonymous
United States
I recommend this product
Casts like a dream
Love this line on my faster action rods. Throws dry flies with ease and stealth, throws double nymph rigs and streamers with ease as well. Highly recommend this line
AV
27 September 2021
Aaron v.
United States
I recommend this product
Great line
The line works well for all freshwater applications in the warm water lakes and creeks in Texas. Casts great and smooth retrieve .
JF
02 September 2021
javier f.
United States
I love scientific amplitude lines
good desing to deliver mediun to large flies, using those long lasting materials.
