A very strong fly line backing that has a very thin diameter with a nice waxy coating that nails knots extremely well. Dragonfly offers this backing in 20 or 30lb and in three colours.
Fly Line Backing Shootout and Buyer's Guide - Trident Fly Fishing
RIO Fly Line Backing 20LB 100yds Orange
VARIETY of COLOR CHOICES- We offer two kind of High Visible Color (include two Two-Tone color) to meet with all kind of reel and fly line color,
Kylebooker Fly Line Backing Line 20/30LB 100/300Yards Orange Green Braided Fly Fishing Line
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A very strong fly line backing that has a very thin diameter with a nice waxy coating that nails knots extremely well. Dragonfly offers this backing
Dragonfly Fly Line Backing