SA Amplitude Smooth Anadro Nymph Indicator Floating Fly Line
The SA Amplitude Smooth Anadro Nymph Indicator Fly Lines are, simply put, the highest-performance smooth fly lines in the world for nymphing big rivers and lakes. With up to five times less drag and eight times the durability of traditional lines, this will change the way you look at fly line performance. Designed with line control in mind, its extended rear taper allows you to cast a mile, mend with authority, and turn over nearly any rig imaginable—from dredging double nymphs to larger dry-dropper concoctions. Steelhead, salmon, and trout won’t know what hit them.
- Features the revolutionary AST Plus slickness additive for superior shooting ability and increased durability
- Long rear taper for extended line control and long-distance casting
- Scientific Angler’s advanced engineering for improved performance in demanding conditions
| Specification | Value |
|---|---|
| Line Type | Smooth Nymph Indicator |
| Weight | 100g |
| Length | 100m |
| Material | High-density polymer with AST Plus additive |
| Application | Nymphing in large rivers and lakes |
FAQ
What makes the AST Plus additive different from standard fly line additives?
The AST Plus additive improves shooting performance and increases line durability without compromising flexibility or sensitivity during casting.
Is this line suitable for both dry-fly and nymphing techniques?
This line is specifically optimized for nymphing, but its smooth performance and long rear taper make it effective for dry-dropper setups as well.
How does the extended rear taper improve casting performance?
The extended rear taper allows for better line control, smoother mends, and improved casting distance, especially when using complex nymph rigs.



Claire Ince –
I’ve used this line on several long stretches of river and it casts smoothly with minimal drag. The mending is precise and I can handle heavy nymph rigs without losing control. Great for big water fishing.
Carolyn Reid –
After switching from a traditional smooth line, I noticed a significant improvement in casting distance and line feel. The durability has held up well after multiple trips to remote lakes.
Justin Cameron –
The line performs well in windy conditions and handles long casts without tangles. A bit more expensive, but the performance justifies the cost for serious nymphers.
Matt Rees –
I use it for both double nymphs and dry-droppers. The rear taper gives me confidence in turning over rigs, and the drag reduction makes it easier to keep the line moving.