It is very hard to improve on the original but articulating the Monkey did just that. The added S swim action of the articulated Butt Monkey is deadly on the big boys.
This fly is great on virtually any fish that swims in fresh water!!! A killer largemouth fly!
The Articulated Butt Monkey is tied on a size 4 for main hook with a trailer. Sold here in the Tan color variation but also available in rusty and olive.