RIO's Powerflex Plus Trout Leaders are the strongest trout leaders ever produced, offering up to 20% greater tensile strength than standard leaders. Advanced modifications to the nylon copolymer formula deliver exceptional strength while maintaining excellent knot reliability and supple handling. Simply put, these leaders combine unrivalled durability with smooth performance, making them the most dependable choice for serious trout anglers. Why Choose Powerflex Leaders for Fly Fishing? Exceptional Strength - Up to 20% stronger than standard leaders for confident fishing. Reliable Knot Performance - Maintains excellent knot strength despite increased tensile power. Smooth & Supple - Ensures lifelike fly presentation and easy handling. Ideal for Trout Fishing - Optimised for UK rivers and stillwaters.  Sizes Available: 9ft or 12ft