SA Amplitude Smooth Infinity Salt Tropical Floating Fly Line
The SA Infinity Salt Fly Line is technical, versatile, accurate, and the most advanced saltwater fly line available. It features the revolutionary AST Plus slickness additive, providing superior shooting ability and increased durability. This line is designed to handle the most rigorous conditions over time.
As a half-line weight, it is heavy enough to turn over any fly, even on the windiest days. The extended head length improves accuracy, allowing you to land your fly precisely on spooky fish with greater efficiency.
Performance Features
| Feature | Detail |
|---|---|
| AST Plus Additive | Enhances shooting performance and durability |
| Line Weight | Half line weight |
| Head Length | Extended for improved accuracy |
| Drag Reduction | Up to five times less drag than traditional lines |
| Durability | Eight times more durable than traditional fly lines |
FAQ
What makes the AST Plus additive special?
The AST Plus additive improves shooting performance and increases line durability, allowing for smoother casting and better resistance to wear in saltwater conditions.
Is this line suitable for windy conditions?
Yes, the half-line weight design provides enough weight to turn over any fly, even in strong winds.
How does the extended head length improve accuracy?
The extended head length allows for more precise fly placement, enabling better targeting of fish in open or windy environments.



Abigail Hill –
This line performs exceptionally well in saltwater environments. The casting feel is smooth and the accuracy is noticeably better than my previous line. I’ve used it in windy conditions and it holds up well.
David Hodges –
The AST Plus additive makes a real difference in how the line shoots. I can cast longer distances with less effort and the line doesn’t fray easily even after repeated use.
Victor Ball –
I appreciate the extended head for better accuracy. It’s a bit heavier than I expected, but it works well for targeting fish in open water. Still a top choice for saltwater fishing.
Liam Avery –
After months of use in tropical saltwater, the line shows no signs of wear. The drag reduction is evident during casting—much smoother and more controlled.