30 lb Fly Line Backing 325' (100M)

Gel Spun 30 pound backing gives you a small profile, so that you can pack more backing on your reel with less bulk. This is the strongest backing

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

SF Braided Fly Fishing Backing Line for Trout Fly Line 20LB 30LB 54yds 108yds(Orange, Green, Blue, White, Fluor Yellow, Purple, Black&White, Black&Yellow) Orange-100m 20LB 100m/108yds

Maxcatch Braided Fly Line Backing for Fly Fishing 20/30lb 100yards (White, Yellow, Orange, Pink, Purple, Green,Black&White, Black&Yellow) (Black&White, 20lb,100 Yards) : : Sports & Outdoors

Gel-Spun Fly Line Backing

Maxcatch Braided Fly Line Backing for Fly Fishing 20/30lb 100yards (White, Yellow, Orange, Pink, Purple, Green,Black&White, Black&Yellow) (Black&White, 20lb,100 Yards) : : Sports & Outdoors

Maxcatch ECO Floating Fly Fishing Line Weight Forward Design with Welded Loop (1F,2F,3F,4F,5F,6F,7F,8F)(Fly Line-Moss Green,WF1F) : : Sports & Outdoors

HERCULES Braided Fly Fishing Line Backing with Long-lasting Color – Hercules Fishing Tackle

Dacron Backing Scientific Anglers

Maximumcatch Backing Fly Fishing Line 20/30LB 50/100/300Yards Backing Line Multi Color Braided Fly Line