RIO Mainstream Trout Fly Line Size:WF-6-F The hybrid shell enhances day-to-day

The hybrid shell enhances day-to-day durability and includes a full 21 vents with dual adjustability that lets you fine-tune airflow to meet the conditions

allowing it to kick up if it comes in contact with the ground or debris

Built for top-of-the-line performance in alpine conditions

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

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

RIO Mainstream Trout Fly Line Size:WF-6-F The hybrid shell enhances day-to-dayTargeted 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