RIO Mainstream Trout Fly Line Size:WF-6-F and most importantly

and most importantly

so your foot slides right in

delivering rock-solid stability from tip to tail

The Mimic Platinum liner can be molded to the precise shape of your foot

Offering superior warmth with 220gm HydroBlock® Sport Insulation and 10K/10K waterproof/breathability fabric that works hard to keep them dry and cozy for all winter-long adventures

RIO Mainstream Trout Fly Line Size:WF-6-F and most importantlyTargeted to the overall needs of the average fly fisher. RIO's Mainstream series of 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 is made in RIO's Idaho manufacturing facility. Each line