We have used all manner of materials over the years to make stop knots and all of them have their downsides. Nylon or braid are certainly long lasting materials, but are a pain to remove and adjust. Elastic is much more user-friendly and is less likely to damage you main line, but is prone to snapping. We took this problem to the worlds largest manufacturer of pure extruded latex and after extensive testing found the perfect blend of elasticity with tensile strength producing what we think is the best stop knot elastic ever.
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