RIO's premium 65lb, 8 carrier backing is made of the finest materials from Japan.  8 strands of tightly woven fibers makes for a round backing that stacks perfectly on the fly reel.  The result is a stronger, softer and smoother performance backing.  The bright multicolored backing changes color every 10 meters and compliments fly reels with a beautiful splash of color and functionality.  The breaking strain and diameter make this a perfect choice for all fishing, from pan fish to ultra-big game such as GT's, billfish and tarpon.