Again a brilliant fly in rivers and lakes. It is one of the go to "swap" flies when they go off a stone fly... We catch a lot of fish using this fly just drifting lake shallows with the fly up off the bottom and an indicator on the nylon to signal a take. Just deadly. Long rubber legs and glitter. No fish can resist this fly. spidery, buggy and everything a fish needs except a hook in its mouth!