Most anglers agree that there are times when it is very important to fish with realistic looking flies. Unfortunately, most realistic looking flies look and act unnatural in the water. T.N.T. Hopper Legs are molded from actual hopper legs and look almost identical to the real thing. Unlike other molded leg materials, they are soft and flexible and even float! The secret to their lifelike appearance, soft texture, durability, and floatation lies in the EVA material that is used in their construction.