Rio Mainstream Sink Tip Line Size:WF4F/S3 This medium sized ultra-lite fly

This medium sized ultra-lite fly box features 2 Micro Slit Foam faces with 66 slits for large flies

Slightly heavier than standard lines for easy loadingSupple core with a slick coldwater coating

Keep your tippet spools organized and at the ready in a moments notice

Super soft Supima Micro modal fiber

a screw-in fighting butt and counterweight washers that fine-tune balance

Rio Mainstream Sink Tip Line Size:WF4F/S3 This medium sized ultra-lite flyRIO'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 is built with a slick coating on a supple memory free