Airflo® Dacron Backing 150m/30lb, Airflo Backing - Fly and Flies

Fly Line Backing Shootout and Buyer's Guide - Trident Fly Fishing

Backing - Zefix Flyfishing

Airflo Micro Backing

Airflo® Dacron Backing 150m/30lb, Airflo Backing - Fly and Flies

Bläkkäri Backing – Vision Fly Fishing

Airflo No Frills Backing

Airflo® Dacron Backing 100m/30lb, Airflo Backing - Fly and Flies

Fly Supply » Backing

RIO Dacron Fly Line Backing 20 or 30 lb 100 to 5000 yd White Orange Yellow in Fishing Line.

RIO Dacron Fly Line Backing 20 or 30 lb 100 to 5000 yd White Orange Yellow, Fishing Line - Canada