Scientific Anglers Amplitude Smooth Bonefish PLUS Fly Line
The Amplitude Smooth series of lines are, simply put, the highest-performance smooth fly lines in the world. 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.
- Based on our popular Grand Slam taper profile, Bonefish Plus boasts an extended head length and lighter, half-heavy, weight, but maintains the short front taper to cast long leaders with ease.
- Features the revolutionary AST Plus slickness additive for superior shooting ability and increased durability
- High-contrast sighter to identify the back of the line when fighting fish on long runs
- Tropi-Core technology
| Specification | Value |
|---|---|
| Weight | Half-heavy |
| Taper Profile | Grand Slam |
| Drag Reduction | Up to five times less drag |
| Durability | Eight times more durable than traditional lines |
| Sighter | High-contrast sighter |
| Technology | AST Plus slickness additive, Tropi-Core |
FAQ
What makes the Bonefish PLUS line different from other smooth fly lines?
The Bonefish PLUS line features an extended head length, lighter half-heavy weight, and maintains a short front taper for better leader casting. It also includes AST Plus slickness additive and Tropi-Core technology, providing superior shooting ability and increased durability.
Does this line perform well in long casts with long leaders?
Yes, the short front taper allows for easy casting of long leaders, making it ideal for bonefish and other species that require precise, long-distance casts.
Is the sighter visible when fighting fish on long runs?
Yes, the high-contrast sighter helps identify the back of the line during long runs, improving visibility when fighting fish.


Jane King –
This fly line casts smoothly and has excellent sensitivity. The high-contrast sighter makes it easy to track the line during long runs. I’ve used it on bonefish and it performs consistently in the wind.
Lucas Terry –
The drag reduction is noticeable. I can feel the line respond better to subtle movements. The Tropi-Core technology seems to hold up well even after repeated use.
Warren Watson –
Great for long casts with long leaders. The AST Plus additive helps with shooting, though it may take a few casts to get used to the feel. Overall, a solid upgrade from my previous line.
Adrian Russell –
I’ve been fishing in shallow flats and this line handles the conditions well. The durability is impressive, and the sighter is very helpful when fighting fish.
Olivia Dickens –
It’s lighter than expected and casts true. The front taper is well balanced, and I appreciate the extended head for better casting performance.