The Tungsten Bead Walt's Worm Jig is an adaptable and effective fly pattern for trout fishing, particularly in cold water conditions or when fish are feeding sub-surface. The tungsten bead head ensures the fly sinks quickly to the bottom, making it ideal for deep pools and fast-moving streams. This fly mimics the appearance of aquatic worms and larva, staple food sources for trout throughout the year. It's especially useful during early spring or after heavy rains when natural worms are more prevalent in the waters and can be fished on a contact nymph rig, behind a dry fly, or in a multiple nymph rig.