A timeless, simple, and incredibly effective fly that imitates aquatic worms often washed into the current after rain or during runoff. Its slender chenille body creates a lifelike, undulating movement that trout find irresistible. Perfect for use as a point fly in nymph rigs or under an indicator, it excels in stained or high water conditions when natural worms are abundant. Easy to cast, quick to sink, and consistently productive, Rainys San Juan Worm is a must-have pattern for any trout anglers fly box.