Rio Products Avid Sinking Fly Fishing Line - Using a special bond of two separate coating layers on one line, the Avid series of fly line uses the AgentX technology to optimize specific performance features for each type of fishing line and each anglers needs. The inner layer uses a more bouyant material while the outer layer of the AgentX technology is formulated for shooting ability and ultimate toughness. The sinking tip technology gets the fly down deep right into the strike zone. The casting has been improved and made easier with the taper style of this line. 24ft sink tip Puts flies down deep into the strike zone Perfect for fishing streamers to trout and steelhead Floating sections makes it easy to mend Taper has been designed for easy casting