Scientific Anglers Amplitude Smooth Tropical/Jungle Titan 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.
- 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; camo tip for stealth
- Powerful head loads quickly and delivers large flies to distant targets; ideal for tarpon, permit, snook, and redfish; useful for GTs, bonefish, and sea trout
- Built in two line sizes: heavy; use designated line weight for your rod
- Tropi-Core technology remains stiff and slick in tropical environments
| Specification | Detail |
|---|---|
| Line Type | Smooth Fly Line |
| Technology | AST Plus, Tropi-Core |
| Line Weight | Heavy |
| Application | Tarpon, Permit, Snook, Redfish, GTs, Bonefish, Sea Trout |
| Durability | Eight times more durable than traditional lines |
| Drag Performance | Up to five times less drag |
FAQ
What makes the AST Plus additive special?
The AST Plus slickness additive improves shooting ability and increases line durability, providing smoother casting and better performance in the field.
Is this line suitable for use in tropical environments?
Yes, the Tropi-Core technology ensures the line remains stiff and slick in tropical conditions, making it ideal for warm-weather fishing.
Can this line be used with different rod weights?
Please contact customer service for guidance on compatibility with specific rod weights.


Faith Lyman –
This line casts smoothly even in windy conditions. The high-contrast sighter helps me see the line during fights, and the camo tip blends well in the jungle. I’ve used it for tarpon and bonefish and it’s held up well after multiple trips.
Jonathan Bailey –
The drag reduction is noticeable—my casts are faster and more accurate. The durability has exceeded my expectations, especially after a few days of heavy use in the mangroves.
Nathan Greene –
Great for long-range casting. The line feels solid and doesn’t tangle easily. A bit more expensive, but the performance justifies the cost for serious anglers.
Wanda Vance –
I switched from a traditional line and noticed a significant improvement in casting distance and control. The AST Plus additive makes it glide through the air like a dream.