Textreme Power Thread Medium 100 Denier is a technical polymer tying thread offering exceptional strength, up to ten times that of steel of the same diameter. With a breaking strength of 3.8 kg, it is ideal for medium to large flies, where strength is paramount without making the thread invasive. Its calibrated twist allows fibers to remain firmly bound while ensuring a flat, even lay with no excess thickness, for perfectly uniform underbodies and heads. Available in red, black (solid, long-lasting colors) and natural white (easily colored with permanent marker), it can be adapted to a wide range of installation situations. As the polymer used is very slippery, we recommend combining it with a drop of cyanoacrylate glue at crucial stages. Packaged in 100-meter spools (size 100 denier), it requires a ceramic-tipped spool-holder to preserve the thread. An essential choice for fabricators looking for robustness, finesse and consistency in their imitations.