Hi-Viz Klinkhammer Olive
The Klinkhammer is, up to this point, the one emerger/dry fly I fish on a near constant basis. I'm not exactly the match the hatch OCD kind of guy. I euro nymph, fish big streamers- BUT when the time comes- the Klinkhammer is hard to beat. Fish it small to match caddis and mayflies, fish it large and you can use it to suspend medium and small dropper flies. 

This version is an olive body, and in large sizes will represent a caddis and in a 16, will represent a mayfly.