If you're a dry fly fisherman, Caddis Flies are no doubt a critical part of your arsenal when you hit the water. The Tan Crystal Flash Caddis Fly is a unique and effective Caddis fly pattern that will bring you success. This is a fly that rides upright and well on any current, and will no doubt be an effective pattern. The Tan Crystal Flash Caddis is a good imitation of the Hydropsyche Caddis that is so common in many Western rivers and streams. No summer evening should be spent streamside without a number of these flies in your vest.