Orvis Backing is braided white Dacron on spools, precision processed with uniform strength. Thehigh-visibility fluorescent orange backing lets you see the backing in the water when a big fish takes out line in a hurry. Tested extensively by Orvis saltwater guides, who found it helped them know where a fish was and when it was changing direction.

• The Orvis Dacron fly line Backing is a top quality fine diameter super smooth braided line.
• Twenty pound test is for trout, bass, and most freshwater fishing.
• Thirty pound test is for salmon and saltwater.
• Colours Available : White or Orange