The Cased Caddis has quickly beome a CFA favorite. It replicates those caddis you see sticking off the rocks when you go digging in the river. You know, the ones that get mad when you squeeze their butts to get em' out of their little house they built? Yeah those ones. There are lots of those little guys in the river, throughout the year. Highly effective pattern. Great on Euro rigs as well, with its slim profile and tungsten beadhead.