Textreme G-Strong (350 Den.) Fly Tying Thread
Textreme G-Strong (350 Den.) is a high-strength, untwisted yarn with parallel filaments, designed primarily for tying streamers. Its construction supports smooth, even head closures, making it useful when control of the fly’s final shape matters. The parallel filament layout distinguishes it from an ordinary twisted thread: while tying, the yarn can be kept flat to create controlled coverage. Before starting, set bobbin tension so the thread does not rotate unpredictably or spread the filaments; excessive pulling can alter the way the material lays down.
Construction and use
G-Strong has an untwisted structure and parallel filaments. The stated 350 Den. is a product designation, not a measurement of diameter. The manufacturer describes this version as exceptionally strong within its collection and intended for streamers.
- Type: high-strength tying yarn
- Construction: untwisted, parallel filaments
- Applications: streamers and smooth head closures
- Handling: control twist and bobbin tension






