SCIENTIFIC ANGLERS 545458 Fly Line Backing, 100 yd L, White, 20 lb Capacity

Backing doesn't just connect your fly line to your reel, it also provides insurance for those drag blistering runs of steelhead or bonefish. Our 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.