Gel-Spun Backing - 50 LB./1000 YDS.

20 lb Fly Line Backing 325' (100M) – Blue Halo

Orvis Gel Spun Backing Fly Line

Gel Spun Backing By the Yard – Bear's Den Fly Fishing Co.

Gel-Spun Fly Line Backing

The XTS Gel Spun Fly Line Backing from Scientific Anglers is some of the strongest thinnest material in the world. Because it is a fraction of the diameter of standard dacron backing you can store up to 75 percent more behind your fly line which buys you more time to catch up to that huge tarpon that just went screaming across the flat. Scientific Anglers' XTS Gel Spun Backing is impervious to elements like UV rays and salt and retains its strength when wet.

Scientific Anglers XTS Blue Gel Spun Fly Line Backing

SA XTS GEL SPUN Fly Line Backing, 50 lb Test, Yellow - 100 to 3,000 Yd Spools

Scientific Anglers XTS GEL SPUN BACKING – Clonanav Fly Fishing

Fly Line Backing Wild Water Fly Fishing

Gel-Spun Backing - 50 LB./1000 YDS.

Dacron Backing Scientific Anglers

Scientific Anglers XTS Gel Spun Backing - Blue (50# - 500 Yards) : Sports & Outdoors

Rio Fly Line Backing - Multi Color Gel Spun 65lb Rio's premium 65lb, 8 carrier backing is stronger, softer and smoother performing backing! It's comprised of 8 strands of tightly woven fibers that stack perfectly on the fly reel. Backing changes bright colors every 10 meters and compliments fly reels with a beautiful color splash and functionality. Suitable breaking strain and diameter for all fishing from pan fish to ultra-big game such as GTs, billfish and Tarpon.

Rio Fly Line Backing - Multi Color Gel Spun - 65lb

Fly Line Backing & Extensions – Cortland Line Company

SCIENTIFIC ANGLERS, Gel-Spun Polyethylene Backing

XTS Gel Spun Polyethylene Backing

Gel Spun Spey Pages