The BFC Discovery DT Floating line is a general all purpose double taper fly line. All our lines have a core of braided nylon. The core is coated with a PVC in which we impart the taper design. Within the PVC we add hollow glass microspheres for floating lines. High floating and durable, this line will perform well with all fly rods including modern fast action graphite rods. Longer front tapers provide delicate presentations.