One of the most versatile and effective dry fly patterns available and usually the answer of the often-asked question if you could only fish one dry fly, what would it be? Its effectiveness comes from a very realistic silhouette that sits low in the water and the highly visible wing that is known to be trigger for trout to eat. The highly visible wing is also in part responsible for its popularity among anglers. The calftail wing and parachute-style hackle also add floatation. Dont leave home without a wide range of sizes in your box!