30 lb Gel-Spun Fly Line Backing 600 Yards Bright Yellow

Go after the biggest, strongest game fish with maximum-strength gel-spun fly line backing.

Gel-Spun Backing

Gel Spun Spey Pages

MULTI COLOR GSP BACKING 65LB - 300YDS : : Sports & Outdoors

What is Fly Line Backing and How Much Do You Need? - Guide Recommended

Scientific Anglers Custom Colored Dacron backing - 30# (Not For Individual Sale)

Best Fishing Line 2021 Editors' Choice Awards - Fish Alaska Magazine

Fly Line Backing Wild Water Fly Fishing

Fly Lines — Big Y Fly Co

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Scientific Anglers Custom Colored Dacron backing - 30# (Not For Individual Sale)