RIO Gel Spun Fly Line Backing - RIO Official Dealer

Cortland Gel Spun Fly Line Backing - 300 yds

HERCULES Braided Fly Line Backing 20lb 30lb 100Yd 300Yd with Long-Lasting Color

Rio Fly Line Backing

30 lb Fly Line Backing 650'

Fly Line Backing - Multi Color Gel Spun - Smooth Braid for Fly Reels - 65LB S...

WOODSTOCK BRAIDED DACRON IGFA Fishing Line Green Spot 500 YARDS FREE USA SHIP!

SCIENTIFIC ANGLERS 50 LB YELLOW 500 YD XTS GEL SPUN BACKING - FREE US SHIPPING