Master the Sparkle Dun, one of the most versatile dry fly patterns ever designed for matching technical mayfly hatches. In this video, we break down the Flavilinea (Western Lesser Green Drake) variation, a staple for summer fly fishing across the Rocky Mountains. You’ll learn how to perfectly balance the deer hair wing and Z-Lon shuck to create a profile that sits low in the film, mimicking an emerging dun with deadly accuracy. Whether you are targeting picky trout during a PMD, BWO, or Flav hatch, this adaptable tie is a must-have in your fly box.