Cortland Micron Backing (White) by Cortland Line Co.
The standard by which all fly line backing has been judged for more than 50 years, Cortland's Micron is world famous for its tight, round braid, smooth low-friction finish, and stretch-resistant performance. Unlike looser, flat woven, lesser quality braids, Micron is manufactured from premium Dacron fibers, enabling it fly cleanly off the spool without twists. Virtually tangle-free, and easily spliced, and renowned not only for its strength, but for tying perfect knots every time too... if your a fly angler who sees your backing often, insist on Cortland Micron! Available in 20lb and 30lb tests, in your choice lengths.