For 50 years Cortland has produced the standard in backing available in 20 lbs and 30 lbs tests. Made from premium Dacron fibers and wound in a tight, round braid that reduces friction. Tangle free, zero twist, and perfect knots are some benefits of Micron Backing. You may not need it, but when you do you’ll be happy you have the best. Colors: white, hot pink, and hi-vis yellow.