Features of the Wooly Bugger, Olive
The Wooly Bugger is perhaps the most versatile fly in fly fishing.
It can imitate or at least suggest any number of trout foods.
Every angler should dedicate one or multiple fly boxes to the several colors and variations of this fly.
The unweighted version is especially useful in stillwater situations where sinking lines are used and the bead head varieties can be used where a weighted fly is called for.