Scientific Anglers Amplitude Smooth Infinity Camo
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.
The conventional wisdom in fly fishing is that there’s no such thing as a “do it all” freshwater line. We have something to say about that. The Amplitude Smooth Infinity has the power to bomb out streamers, yet retains delicacy for dry flies. It mends like an absolute dream, and delivers flies at all distances. Built a half-size heavy, with a long head and substantial front taper, it’s perfect for everything from trout and panfish to pike and steelhead. There’s a reason we call it the Infinity: there is no end to what you can do with it.
| Specification | Value |
|---|---|
| Line Type | Smooth Fly Line |
| Weight | Half-Size Heavy |
| Head Length | Long Head |
| Front Taper | Substantial |
| Drag Reduction | Up to five times less drag |
| Durability | Eight times more durable than traditional lines |
FAQ
What makes the Amplitude Smooth Infinity different from other fly lines?
It offers up to five times less drag and eight times the durability of traditional fly lines, with a long head and substantial front taper that allows for both powerful streamer presentations and delicate dry fly casting.
Is this line suitable for both trout and larger game fish?
Yes, the Amplitude Smooth Infinity is designed for use with trout, panfish, pike, and steelhead due to its balanced performance across different fishing scenarios.
Does the line perform well in windy or variable conditions?
Please contact customer service

Oliver Wilkins –
I’ve tried several fly lines over the years, but the Amplitude Smooth Infinity is by far the most reliable. It casts smoothly even in the wind and handles both dry flies and streamers without tangles or drag. The mending is excellent, and I’ve used it on multiple lakes with mixed success. A must-have for any serious freshwater angler.
Harry Langdon –
This line changed my fishing experience. The smoothness and durability are unmatched. I use it for both morning dry fly fishing and afternoon streamer work. It doesn’t snap under pressure and keeps its shape through long casts. Highly recommend.
Christopher Brown –
Great performance overall, especially for trout and panfish. The drag reduction helps with long casts, and the line feels balanced. A bit heavier than I expected, but it works well in varied conditions. Slight learning curve at first, but worth the adjustment.