Scientific Anglers fly line backing is extremely thin has a low coefficient of friction high abrasion resistance is colorfast and has high visibility. Fly line backing is what goes on your fly reel before the fly line itself. Usually 100 to 300 yards of backing is used but check with your fly reel manufacturer for the rmended amount specific to your fly reel.
Scientific Anglers Dacron Fly Line Backing - Hunter Banks Fly Fishing
Scientific Anglers Dacron Fly Line Backing White 30lb 250yds
Scientific Anglers Dacron Backing - The Compleat Angler
Scientific Anglers' Backing doesn't just connect your fly line to your reel, it also provides insurance for those drag-blistering runs of steelhead or bonefish. It works hard. Now let it look good. The Dacron backing offers a thin diameter, high abrasion resistance, and peace of mind, knowing that the fish of a lifetime won't be getting away from you this time.
Scientific Anglers Fly Line Backing - Dacron Orange, 30Lb/100Yd
Scientific Anglers Sonar Leaders 3m (10ft)
Scientific Anglers' Backing doesn't just connect your fly line to your reel, it also provides insurance for those drag-blistering runs of steelhead or bonefish. It works hard. Now let it look good. The Dacron backing offers a thin diameter, high abrasion resistance, and peace of mind, knowing that the fish of a lifetime won't be getting away from you this time.
Scientific Anglers Fly Line Backing - Dacron Orange, 30Lb/100Yd
RIO Multi Color GSP Backing
Backing Land & Sea
Scientific Anglers Dacron Backing - White // The Flyfisher, Australia
Scientific Anglers Specialty Colored Dacron Fly Line Backing 20 Lb Blk : Sports & Outdoors
Vision Thin Backing 100m/30lb — The Flyfisher