Rio Fly Line Backing 65LB Multi Color GSP 200yds - Bergen Aktiv

RIO Multi Colour Gsp Backing – Guide Flyfishing, Fly Fishing Rods, Reels, Sage, Redington, RIO

RIO's Multi Color, 65lb GSP Backing

Rio Gel Spun (GSP) 65LB Backing

Backing - Bergen Aktiv

RIO Multi Color GSP Fly Line Backing 65 pounds 100 yards, 200 yards, 300 yards

RIO Multi Color GSP Fly Line Backing 65 pounds 100 yards, 200 yards, 300 yards

RIO Multi Colour Gsp Backing – Guide Flyfishing, Fly Fishing Rods, Reels, Sage, Redington, RIO

RIO Fly Lines, Backing & Accessories - Rok Max

Fly Lines & Backing – Rocky Mountain Fly Shop