The RIO Mainstream Saltwater fly lines have been developed to meet the overall needs of the average and novice fly fisher, and are designed to optimize rod performance with slightly heavier and shorter head lengths. Every Mainstream line undergoes the same rigorous production processes and quality control standards as all RIO fly lines and each saltwater line is built with a hard, saltwater coating for the best in performance.FeaturesSlightly heavier, easy casting lines for a multitude of speciesShort, powerful front taper for good presentation and turnoverOptimizes rod performance